{"id":425,"date":"2021-05-31T03:40:00","date_gmt":"2021-05-31T03:40:00","guid":{"rendered":"https:\/\/class12.studyguruji.in\/?p=425"},"modified":"2023-10-22T08:30:29","modified_gmt":"2023-10-22T08:30:29","slug":"13-%e0%a4%a8%e0%a4%be%e0%a4%ad%e0%a4%bf%e0%a4%95-3","status":"publish","type":"post","link":"https:\/\/class12.studyguruji.in\/?p=425","title":{"rendered":"13. \u0928\u093e\u092d\u093f\u0915"},"content":{"rendered":"

1<\/span><\/b>.\u00a0\u0938\u094c\u0930 \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0938\u094d\u0930\u094b\u0924 \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093f\u092f\u0930 \u0935\u093f\u0916\u0902\u0921\u0928<\/span>
\n(B)\u00a0\u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093f\u092f\u0930 \u0938\u0902\u0932\u092f\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C) (A)\u00a0\u090f\u0935\u0902(<\/span>B)\u00a0\u0926\u094b\u0928\u094b\u0902<\/span>
\n(D)\u00a0\u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

2<\/span><\/b>.\u00a0\u092a\u094d\u0930\u0925\u092e \u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u093f\u0938\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u0940 \u0917\u0908<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u091a\u0949\u0921\u0935\u093f\u0915<\/span>
\n(B)\u00a0\u0906\u0907\u0902\u0938\u094d\u091f\u0940\u0928<\/span>
\n(C)\u00a0\u092a\u093e\u090a\u0932\u0940<\/span>
\n(D)\u00a0\u0930\u0926\u0930\u092b\u094b\u0930\u094d\u0921<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

3<\/span><\/b>.\u00a0\u0907\u0928\u092e\u0947\u0902 \u0915\u094c\u0928 \u0906\u0935\u0947\u0936 \u0930\u0939\u093f\u0924 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u0905\u0932\u094d\u092b\u093e \u0915\u0923<\/span>
\n(B)\u00a0\u092c\u0940\u091f\u093e \u0915\u0923<\/span>
\n(C)\u00a0\u092b\u094b\u091f\u0949\u0928 \u0915\u0923<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

4<\/span><\/b>.\u00a0\u091c\u093f\u0924\u0928\u0947 \u0938\u092e\u092f \u092e\u0947\u0902 \u0915\u093f\u0938\u0940 \u0930\u0947\u0921\u093f\u092f\u094b\u090f\u0915\u094d\u091f\u093f\u0935 \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u0940 \u0930\u093e\u0936\u093f \u0905\u092a\u0928\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u0940 \u0906\u0927\u0940 \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948 \u0909\u0938\u0947 \u0915\u0939\u0924\u0947 \u0939\u0948\u0902<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0914\u0938\u0924 \u0906\u092f\u0941<\/span>
\n(B)\u00a0\u0905\u0930\u094d\u0927 \u0906\u092f\u0941<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0915\u094d\u0937\u092f \u0928\u093f\u092f\u0924\u093e\u0902\u0915<\/span>
\n(D)\u00a0\u0906\u0935\u0930\u094d\u0924 \u0915\u093e\u0932<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

5<\/span><\/b>.\u00a0\u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span><\/b>,\u00a0\u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u0938\u092e\u0924\u0941\u0932\u094d\u092f \u0939\u0948<\/span><\/b>,\u00a0\u0938\u0939\u0940 \u0938\u0902\u092c\u0902\u0927 \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A) m = E
\n(B) m2<\/sup>\u00a0= E
\n(C) mc2<\/sup>\u00a0= E<\/span>\u00a0\u2713<\/span><\/b>
\n(D) m =\u00a0<\/span>\u221a<\/span>E<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

6<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0915\u0940 \u0928\u0939\u0940\u0902 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u090f\u0915\u094d\u0938-\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(B)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(C)\u00a0<\/span>\u03d2<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(D)\u00a0<\/span>\u03b2<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

7<\/span><\/b>.\u00a0\u092a\u094d\u0930\u0924\u093f \u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093f\u092f\u0949\u0928 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u094d\u0937\u0924\u093f \u0915\u094b \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u092a\u0948\u0915\u093f\u0902\u0917 \u092b\u0948\u0915\u094d\u0938\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u090a\u0930\u094d\u091c\u093e \u0939\u094d\u0930\u093e\u0938<\/span>
\n(C)\u00a0\u0938\u0902\u0935\u0947\u0917 \u0939\u094d\u0930\u093e\u0938<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

8<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u0947 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u0928 \u0938\u0947 \u0924\u0924\u094d\u0924\u094d\u0935 \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0<\/span>\u03b1<\/span>-decay
\n(B)\u00a0<\/span>\u03b2<\/span>+-decay
\n(C)\u00a0<\/span>\u03b2<\/span>\u2013<\/span><\/sup>-decay
\n(D)\u00a0<\/span>\u03d2<\/span>-decay<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

9<\/span><\/b>.\u00a0\u090f\u0915 \u0905\u0932\u094d\u092b\u093e \u0915\u0923 \u092c\u0928\u093e \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u090f\u0915 \u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0914\u0930 \u090f\u0915 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0938\u0947<\/span>
\n(B)\u00a0\u0926\u094b \u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0914\u0930 \u0926\u094b \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0938\u0947<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0926\u094b \u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0914\u0930 \u090f\u0915 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0938\u0947<\/span>
\n(D)\u00a0\u0915\u0947\u0935\u0932 \u090f\u0915 \u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0938\u0947<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

10<\/span><\/b>.\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u094d\u0930\u092e\u093e\u0902\u0915 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0928\u093e\u092d\u093f\u0915 \u092e\u0947\u0902 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<\/span>
\n(B)\u00a0<\/span>\u03b1<\/span>–\u0915\u0923\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<\/span>
\n(C)\u00a0\u0928\u093e\u092d\u093f\u0915 \u092e\u0947\u0902 \u092a\u094d\u0930\u094b\u091f\u0949\u0928\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

11<\/span><\/b>.\u00a0\u090f\u0915 \u0924\u0924\u094d\u0924\u094d\u0935 \u0915\u0940 \u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/b>\u00a0Z\u00a0\u0914\u0930 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928-\u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/b>\u00a0A\u00a0\u0939\u0948\u0964 \u0907\u0938\u0915\u0947 \u090f\u0915 \u092a\u0930\u092e\u093e\u0923\u0941 \u092e\u0947\u0902 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0917\u0940<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A) A + z
\n(B) A
\n(C) A \u2013 Z<\/span>\u00a0\u2713<\/span><\/b>
\n(D) z<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

12<\/span><\/b>.\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0947 \u0928\u093e\u092d\u093f\u0915 \u092e\u0947\u0902 \u0905\u0935\u0936\u094d\u092f \u0930\u0939\u0947\u0917\u093e<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span>
\n(C)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span>
\n(D)\u00a0\u092a\u094b\u091c\u093f\u091f\u094d\u0930\u0949\u0928<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

13<\/span><\/b>.\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0916\u094b\u091c \u0915\u0930\u0928\u0947 \u0915\u093e \u0936\u094d\u0930\u0947\u092f \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u093f\u0928\u094d\u0939\u0947\u0902 \u0939\u0948<\/span><\/b>?<\/span><\/span><\/p>\n

(A)\u00a0\u091f\u0949\u092e\u0938\u0928 \u0915\u094b<\/span>
\n(B)\u00a0\u0930\u0926\u0930\u092b\u094b\u0930\u094d\u0921 \u0915\u0940<\/span>
\n(C)\u00a0\u0928\u0940\u0932\u094d\u0938 \u092c\u094b\u0930 \u0915\u094b<\/span>
\n(D)\u00a0\u091a\u0948\u0921\u0935\u093f\u0915 \u0915\u094b<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

14<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u093f\u0938\u0947 \u0935\u093f\u092d\u093e\u091c\u093f\u0924 \u0928\u0939\u0940\u0902 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u092a\u0930\u092e\u093e\u0923\u0941<\/span>
\n(B)\u00a0\u0927\u0928-\u0906\u092f\u0928<\/span>
\n(C)\u00a0\u0928\u093e\u092d\u093f\u0915<\/span>
\n(D)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

15<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0906\u0935\u0947\u0936\u0930\u0939\u093f\u0924 \u0915\u0923 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0<\/span>\u03b1<\/span>–\u0915\u0923<\/span>
\n(B)\u00a0<\/span>\u03b2<\/span>–\u0915\u0923<\/span>
\n(C)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u092b\u094b\u091f\u0949\u0928<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

16<\/span><\/b>.\u00a0\u091c\u093f\u0938 \u092a\u094d\u0930\u0915\u094d\u0930\u093f\u092f\u093e \u0926\u094d\u0935\u093e\u0930\u093e \u090f\u0915 \u092d\u093e\u0930\u0940 \u0928\u093e\u092d\u093f\u0915 \u0932\u0917\u092d\u0917 \u0938\u092e\u093e\u0928 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0935\u093e\u0932\u0947 \u0926\u094b \u0939\u0932\u094d\u0915\u0947 \u0928\u093e\u092d\u093f\u0915\u094b\u0902 \u092e\u0947\u0902 \u0935\u093f\u092d\u0915\u094d\u0924 \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b>,\u00a0\u0909\u0938\u0947 \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u0938\u0902\u0932\u092f\u0928<\/span>
\n(B)\u00a0\u0935\u093f\u0916\u0902\u0921\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0935\u093f\u0927\u0941\u0924\u094d \u092a\u094d\u0930\u092d\u093e\u0935<\/span>
\n(D)\u00a0\u0930\u0947\u0921\u093f\u092f\u094b \u0938\u0915\u094d\u0930\u093f\u092f\u0924\u093e<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

17<\/span><\/b>.\u00a0\u0938\u0942\u0930\u094d\u092f \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0915\u093e\u0930\u0923 \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0935\u093f\u0916\u0902\u0921\u0928 .<\/span>
\n(B)\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0938\u0902\u0932\u092f\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0917\u0948\u0938\u094b\u0902 \u0915\u093e \u091c\u0932\u0928\u093e<\/span>
\n(D)\u00a0\u090a\u092a\u0930 \u092e\u0947\u0902 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902 .<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

18<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0930\u093f\u090f\u0915\u094d\u091f\u0930 \u092e\u0947\u0902 \u0915\u0928\u094d\u091f\u094d\u0930\u094b\u0932 \u0930\u0949\u0921 (\u0915\u0948\u0921\u092e\u093f\u092f\u092e) \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0917\u0924\u093f \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<\/span>
\n(B)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0905\u0935\u0936\u094b\u0937\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0938\u092d\u0940<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

19<\/span><\/b>.\u00a0\u0915\u093f\u0938\u0940 \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u093e \u0928\u093e\u092d\u093f\u0915 (<\/span><\/b>Nucleus)\u00a0\u092c\u0928\u093e \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0938\u0947<\/span>
\n(B)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0914\u0930 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0938\u0947<\/span>
\n(C)\u00a0\u0905\u0932\u094d\u092b\u093e -\u0915\u0923 \u0938\u0947<\/span>
\n(D)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0914\u0930 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0938\u0947<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

20<\/span><\/b>.\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0947 \u0928\u093e\u092d\u093f\u0915 \u092e\u0947\u0902 \u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u090f\u0915 \u0938\u093e\u0925 \u0930\u0939 \u092a\u093e\u0924\u0947 \u0939\u0948\u0902<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u092c\u0932<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0917\u0941\u0930\u0941\u0924\u094d\u0935\u093e\u0915\u0930\u094d\u0937\u0940 \u092c\u0932<\/span>
\n(C)\u00a0\u0915\u0942\u0932\u092e\u094d\u092c \u092c\u0932<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

21<\/span><\/b>.\u00a0\u0935\u093f\u0927\u0941\u0924 \u092f\u093e \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span>
\n(B)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>
\n(C)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0<\/span>\u03b1<\/span>–\u0915\u0923<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

22<\/span><\/b>.\u00a0<\/span>\u03b3<\/span>–\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0940 \u0909\u091a\u094d\u091a \u092c\u0947\u0927\u0928 \u0936\u0915\u094d\u0924\u093f \u0915\u093e \u0915\u093e\u0930\u0923 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0915\u092e \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0905\u0927\u093f\u0915 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f<\/span>
\n(C)\u00a0\u0906\u0935\u0947\u0936 \u0915\u093e \u0928 \u0939\u094b\u0928\u093e<\/span><\/span><\/span><\/p>\n

(D)\u00a0\u0905\u0927\u093f\u0915 \u0906\u0935\u0947\u0936 \u0915\u093e \u0939\u094b\u0928\u093e<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

23<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917 \u0935\u093e\u0932\u0947 \u0917\u0941\u0923 \u0915\u093e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u0905\u0932\u094d\u092b\u093e-\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(B)\u00a0\u092c\u0940\u091f\u093e-\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(C)\u00a0\u0917\u093e\u092e\u093e-\u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

24<\/span><\/b>.\u00a0<\/span>\u03b3<\/span>–\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u094b \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u0936\u0942\u0928\u094d\u092f \u0906\u0935\u0947\u0936 \u0914\u0930 \u0936\u0942\u0928\u094d\u092f \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u090f\u0915\u093e\u0902\u0915 \u0927\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u0936\u0942\u0928\u094d\u092f \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span>
\n(C)\u00a0\u090f\u0915\u093e\u0902\u0915 \u090b\u0923 \u0906\u0935\u0947\u0936 \u0914\u0930 \u0936\u0942\u0928\u094d\u092f-\u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span>
\n(D)\u00a0\u0936\u0942\u0928\u094d\u092f \u0906\u0935\u0947\u0936 \u0914\u0930 \u092a\u0930\u093f\u092e\u093f\u0924 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

25<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u094b\u0902 \u092e\u0947\u0902 \u0915\u093f\u0938\u0915\u093e \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u0938\u092c\u0938\u0947 \u091b\u094b\u091f\u093e \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0\u0905\u0935\u0930\u0915\u094d\u0924 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(B)\u00a0\u0926\u0943\u0936\u094d\u092f \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
\n(C)\u00a0\u0917\u093e\u092e\u093e-\u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917\u0947\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

26<\/span><\/b>.\u00a0\u091c\u092c \u0915\u094b\u0908 \u0930\u0947\u0921\u093f\u092f\u094b\u0938\u0915\u094d\u0930\u093f\u092f \u0924\u0924\u094d\u0924\u094d\u0935<\/span><\/b>\u00a0<\/span>\u03b1<\/span>–\u0915\u0923 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948<\/span><\/b>,\u00a0\u0924\u094b \u0907\u0938\u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u092c\u0922\u093c\u0924\u0940 \u0939\u0948<\/span>;\u00a0\u092a\u0930\u0928\u094d\u0924\u0941 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u0918\u091f\u0924\u0940 \u0939\u0948<\/span>
\n(B)\u00a0\u0918\u091f\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u0907\u0938\u0915\u0940 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u092d\u0940 \u0918\u091f\u0924\u0940 \u0939\u0948<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0918\u091f\u0924\u0940 \u0939\u0948<\/span>;\u00a0\u092a\u0930\u0928\u094d\u0924\u0941 \u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e \u092c\u0922\u093c\u0924\u0940 \u0939\u0948<\/span>
\n(D)\u00a0\u0935\u0939\u0940 \u0930\u0939\u0924\u0940 \u0939\u0948<\/span>;\u00a0\u092a\u0930\u0928\u094d\u0924\u0941 \u092a\u0930\u092e\u093e\u0923\u0941-\u0938\u0902\u0916\u094d\u092f\u093e \u0918\u091f\u0924\u0940 \u0939\u0948<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

27<\/span><\/b>.\u00a0<\/span>\u03b2<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902 \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0917\u0941\u0930\u0941\u0924\u094d\u0935\u093e\u0915\u0930\u094d\u0937\u0923-\u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902<\/span>
\n(B)\u00a0\u0915\u0947\u0935\u0932 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902<\/span>
\n(C)\u00a0\u0915\u0947\u0935\u0932 \u0935\u093f\u0927\u0941\u0924\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902<\/span>
\n(D)\u00a0\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u090f\u0935\u0902 \u0935\u093f\u0927\u0941\u0924\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0926\u094b\u0928\u094b\u0902 \u092e\u0947\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

28<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u0940 \u092d\u0947\u0926\u0928\u0915\u094d\u0937\u092e\u0924\u093e \u092e\u0939\u0924\u094d\u0924\u092e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A) x-\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u093e<\/span>
\n(B)\u00a0\u0915\u0948\u0925\u094b\u0921 \u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u093e<\/span>
\n(C)\u00a0<\/span>\u03b1<\/span>–\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u093e<\/span>
\n(D)\u00a0<\/span>\u03b3<\/span>–\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u093e<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

29<\/span><\/b>.\u00a0<\/span>\u03b2<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902 \u0924\u0947\u091c\u0940 \u0938\u0947 \u091a\u0932\u0928\u0947 \u0935\u093e\u0932\u0947-<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0939\u0948\u0902<\/span>
\n(B)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0939\u0948<\/span>
\n(C)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u0948\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

30<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f-\u0918\u0928\u0924\u094d\u0935 \u0915\u093e \u0915\u094d\u0930\u092e \u0939\u094b\u0924\u093e \u0939\u0948 :<\/span><\/b><\/span><\/span><\/p>\n

(A) 103<\/sup>\u00a0\u0915\u093f.\u0917\u094d\u0930\u093e.\/\u092e\u0940<\/span>3<\/sup>
\n(B) 1017<\/sup>\u00a0\u0915\u093f.\u0917\u094d\u0930\u093e.\/\u092e\u0940<\/span>3<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(C) 106<\/sup>\u00a0\u0915\u093f.\u0917\u094d\u0930\u093e.\/\u092e\u0940<\/span>3<\/sup>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

31<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0918\u0928\u0924\u094d\u0935 \u0915\u0940 \u0915\u094b\u091f\u093f (<\/span><\/b>kg\/m3\u092e\u0947\u0902 ):<\/span><\/b><\/span><\/span><\/p>\n

(A) 107<\/sup>
\n(B) 1017<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(C) 1024<\/sup>
\n(D) 1027<\/sup><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

32<\/span><\/b>.\u00a0\u0930\u0947\u0921\u093f\u092f\u094b \u0938\u0915\u094d\u0930\u093f\u092f \u092a\u0926\u093e\u0930\u094d\u0925 ( \u0905\u0930\u094d\u0926\u094d\u0927 \u0906\u092f\u0941 =<\/span><\/b>2\u00a0\u0918\u0902\u091f\u093e ) \u0915\u093e<\/span><\/b>\u00a032\u00a0\u0917\u094d\u0930\u093e\u092e<\/span><\/b>\u00a010\u00a0\u0918\u0902\u091f\u0947 \u092e\u0947\u0902 \u0915\u093f\u0924\u0928\u093e \u0915\u094d\u0937\u092f \u0939\u094b\u0917\u093e:<\/span><\/b><\/span><\/span><\/p>\n

(A) 1\u00a0\u0917\u094d\u0930\u093e\u092e<\/span>
\n(B) 2\u00a0\u0917\u094d\u0930\u093e\u092e<\/span>
\n(C) 31\u00a0\u0917\u094d\u0930\u093e\u092e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D) 25\u00a0\u0917\u094d\u0930\u093e\u092e<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

33<\/span><\/b>.\u00a0\u0930\u0947\u0921\u093f\u092f\u094b \u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093e\u0907\u0921 \u0915\u0947 \u0905\u092a\u0915\u094d\u0937\u092f \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u0947 \u0935\u094d\u092f\u0941\u0924\u094d\u0915\u094d\u0930\u092e \u0915\u094b \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0905\u0930\u094d\u0927\u093e\u092f\u0941<\/span>
\n(B)\u00a0\u0915\u0941\u0932 \u0906\u092f\u0941<\/span>
\n(C)\u00a0\u0914\u0938\u0924-\u0906\u092f\u0941<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

34<\/span><\/b>.\u00a0\u092b\u094c\u0938\u093f\u0932 \u0915\u0947 \u0909\u092e\u094d\u0930 \u0915\u0940 \u0917\u0923\u0928\u093e \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0917\u093e\u092e\u093e-\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0947 \u0905\u0935\u0936\u094b\u0937\u0923 \u0926\u094d\u0935\u093e\u0930\u093e<\/span>
\n(B)\u00a0\u0915\u093e\u0930\u094d\u092c\u0928 \u0921\u0947\u091f\u093f\u0902\u0917 \u0926\u094d\u0935\u093e\u0930\u093e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0915\u094d\u0930\u094b\u092e\u094b\u0938\u094b\u092e\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u0940 \u0917\u093f\u0928\u0924\u0940 \u0915\u0930\u0915\u0947<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

35<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0935\u093f\u0916\u0923\u094d\u0921\u0928 \u0915\u0947 \u0906\u0935\u093f\u0937\u094d\u0915\u093e\u0930\u0915 \u0925\u0947<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0930\u0926\u0930-\u092b\u094b\u0930\u094d\u0921<\/span>
\n(B)\u00a0\u0915\u094d\u092f\u0942\u0930\u0940<\/span>
\n(C)\u00a0\u092c\u0947\u0915\u094d\u092f\u0941\u0930\u0947\u0932<\/span>
\n(D)\u00a0\u0939\u0949\u0928 \u0924\u0925\u093e \u0938\u094d\u091f\u094d\u0930\u093e\u0936\u092e\u0948\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

36<\/span><\/b>.\u00a0\u0938\u0942\u0930\u094d\u092f \u090a\u0930\u094d\u091c\u093e \u0915\u0940 \u0905\u0924\u094d\u092f\u0927\u093f\u0915 \u092a\u0930\u093f\u092e\u093e\u0923 \u0935\u093f\u092e\u0941\u0915\u094d\u0924 \u0915\u0930\u0924\u093e \u0939\u0948<\/span><\/b>,\u00a0\u0907\u0938 \u092a\u094d\u0930\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u094b \u0915\u0939\u0924\u0947 \u0939\u0948\u0902<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0938\u0902\u0932\u092f\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0935\u093f\u0916\u0923\u094d\u0921\u0928<\/span>
\n(C)\u00a0\u0926\u0939\u0928<\/span>
\n(D)\u00a0\u0926\u094d\u0930\u0935\u0923<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

37.\u00a0<\/span><\/b>\u0930\u0947\u0921\u093f\u092f\u094b\u0938\u0915\u094d\u0930\u093f\u092f\u0924\u093e \u0915\u0940 \u0907\u0915\u093e\u0908 \u0939\u0948 \u0964<\/span><\/b><\/b><\/span><\/p>\n

(A)\u00a0<\/span>\u091c\u0942\u0932<\/span>
\n(B) MeV .<\/span>\u00a0\u2713<\/span>
\n(C) a.m.u.
\n(D)\u00a0<\/span>\u0915\u094d\u092f\u0942\u0930\u0940<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

38<\/span><\/b>.\u00a0\u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093f\u092f\u0930 \u0918\u0928\u0924\u094d\u0935 \u0915\u093e \u0915\u094d\u0930\u092e \u0939\u094b\u0924\u093e \u0939\u0948-<\/span><\/b><\/span><\/span><\/p>\n

(A) 103<\/sup>
\n(B) 1017<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(C) 106<\/sup>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

39<\/span><\/b>.\u00a0\u0915\u093f\u0938\u0940 \u0924\u0924\u094d\u0924\u094d\u0935 \u0915\u0947 \u0926\u094b \u0938\u092e\u0938\u094d\u0925\u093e\u0928\u093f\u0915\u094b\u0902 \u0915\u0947 \u0928\u093e\u092d\u093f\u0915\u094b\u0902 \u092e\u0947\u0902 \u0905\u0935\u0936\u094d\u092f \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e<\/span>
\n(B)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0915\u0940 \u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0924\u0925\u093e \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e<\/span>
\n(D)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0915\u0940 \u0905\u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

40<\/span><\/b>.\u00a0\u091c\u092c \u090f\u0915 \u0930\u0947\u0921\u093f\u092f\u094b\u0938\u0915\u094d\u0930\u093f\u092f \u092a\u0930\u092e\u093e\u0923\u0941<\/span><\/b>\u00a0<\/span>\u03b2<\/span>–\u0915\u0923 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948 \u0924\u092c \u0907\u0938\u0915\u093e \u092a\u0930\u092e\u093e\u0923\u0941 \u092d\u093e\u0930<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0928\u0939\u0940\u0902 \u092c\u0926\u0932\u0947\u0917\u093e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u092c\u0926\u0932 \u091c\u093e\u090f\u0917\u093e<\/span>
\n(C) 2\u00a0\u0938\u0947 \u092c\u0926\u0932 \u091c\u093e\u090f\u0917\u093e<\/span>
\n(D) 4\u00a0\u0938\u0947 \u092c\u0926\u0932 \u091c\u093e\u090f\u0917\u093e<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

41<\/span><\/b>.\u00a0\u091c\u0940\u0935\u093e\u0936\u094d\u092e \u0915\u0940 \u0906\u092f\u0941 \u092a\u0924\u093e \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0915\u093e\u0930\u094d\u092c\u0928 \u0921\u0947\u091f\u093f\u0902\u0917 \u0938\u0947<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B) x-ray\u00a0\u0938\u0947<\/span>
\n(C)\u00a0\u0917\u093e\u092e\u093e \u0915\u093f\u0930\u0923 \u0938\u0947<\/span>
\n(D)\u00a0\u0932\u0947\u091c\u0930 \u0938\u0947<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

42<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092f\u0941\u0917\u094d\u092e\u094b\u0902 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0938\u092e\u092d\u093e\u0930\u093f\u0915 \u092f\u0941\u0917\u094d\u092e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a01<\/sub>H1<\/sup>\u00a0\u0914\u0930<\/span>\u00a01<\/sub>H2<\/sup>
\n(B)\u00a01<\/sub>H2<\/sup>\u00a0\u0914\u0930<\/span>\u00a01<\/sub>H3<\/sup>
\n(C)\u00a06<\/sub>C12<\/sup>\u00a0\u0914\u0930<\/span>\u00a06<\/sub>C13<\/sup>
\n(D)\u00a015<\/sub>P30<\/sup>\u00a0\u0914\u0930<\/span>\u00a014<\/sub>Si30<\/sup><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

43<\/span><\/b>.\u00a0\u090f\u0915 \u0930\u0947\u0921\u093f\u092f\u094b \u0938\u092e\u0938\u094d\u0925\u093e\u0928\u093f\u0915 \u0915\u0940 \u0905\u0930\u094d\u0926\u094d\u0927-\u0906\u092f\u0941<\/span><\/b>\u00a05\u00a0\u0935\u0930\u094d\u0937 \u0939\u0948\u0964<\/span><\/b>\u00a015\u00a0\u0935\u0930\u094d\u0937\u094b\u0902 \u092e\u0947\u0902 \u0915\u094d\u0937\u092f \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u0915\u093e \u0905\u0902\u0936 \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 1
\n(B) 1\/8
\n(C) 7\/8<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 5\/8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

44<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u092a\u094d\u0930\u0924\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902<\/span><\/b>,\u00a0\u0905\u092a\u0942\u0930\u094d\u0923 \u092a\u0926 \u0939\u0948 :<\/span><\/b><\/span><\/span><\/p>\n

5<\/span><\/sub><\/b>B10<\/sup>\u00a0+2<\/sub>He4<\/sup>\u00a0<\/span><\/b>\u2192<\/span><\/b>\u00a07N13<\/sup>\u00a0+\u2026\u2026..<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>
\n(B)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

45<\/span><\/b>.\u00a0\u0930\u0947\u0921\u093f\u092f\u094b\u0938\u0915\u094d\u0930\u093f\u092f \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u0940 \u0905\u0930\u094d\u0926\u094d\u0927\u093e\u092f\u0941 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) log102\u00a0<\/sup>\/\u00a0<\/span>\u03bb<\/span>
\n(B) 0.6931 x\u00a0<\/span>\u03bb<\/span>
\n(C)\u00a0\u0914\u0938\u0924 \u0906\u092f\u0941 \/<\/span>\u00a00.6931
\n(D) 0.6931 \/\u00a0<\/span>\u03bb<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

46<\/span><\/b>.\u00a0\u090f\u0915 \u0930\u0947\u0921\u093f\u092f\u094b\u0938\u0915\u094d\u0930\u093f\u092f \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u0940 \u0914\u0938\u0924-\u0906\u092f\u0941<\/span><\/b>\u00a0100\u00a0\u0935\u0930\u094d\u0937 \u0939\u0948 \u0924\u094b \u0909\u0938\u0915\u0940 \u0905\u0930\u094d\u0926\u094d\u0927\u093e\u092f\u0941 \u0939\u094b\u0917\u0940<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 50\u00a0\u0935\u0930\u094d\u0937<\/span>
\n(B) 100\u00d70.06\/2\u00a0\u0935\u0930\u094d\u0937<\/span>
\n(C) 69.3\u00a0\u0935\u0930\u094d\u0937<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

47<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092a\u094d\u0930\u0924\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902 \u092f\u0942\u0930\u0947\u0928\u093f\u092f\u092e \u0915\u0947 \u0915\u093f\u0924\u0928\u0947 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u0947 \u0939\u0948\u0902<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

92<\/span><\/sub><\/b>U235<\/sup>\u00a0+\u00a0o<\/sub>n1<\/sup>\u00a0<\/span><\/b>\u2192<\/span><\/b>\u00a056<\/sub>Ba141<\/sup>\u00a0+\u00a036<\/sub>Kr92<\/sup>\u00a0+30<\/sub>n1<\/sup>\u00a0+ 200 MeV<\/span><\/b><\/span><\/p>\n

(A) 186200\u00a0\u092e\u093e\u0924\u094d\u0930\u0915<\/span>
\n(B) 0.215\u00a0\u092e\u093e\u0924\u094d\u0930\u0915<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C) 4.655\u00a0\u092e\u093e\u0924\u094d\u0930\u0915<\/span>
\n(D) 0.12 x 10-19<\/sup>\u00a0\u0915\u093f\u0917\u094d\u0930\u093e\u0966<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

48<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u092a\u094d\u0930\u0924\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902<\/span><\/b>\u00a01<\/sub>H3<\/sup>\u00a0+\u00a01<\/sub>H2<\/sup>\u00a0<\/span>\u2192<\/span>\u00a02<\/sub>He4<\/sup>\u00a0+\u00a00<\/sub>n1<\/sup>\u00a0\u0935\u093f\u092e\u0941\u0915\u094d\u0924 \u090a\u0930\u094d\u091c\u093e \u0932\u0917\u092d\u0917 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 200 MeV
\n(B) 17.5 MeV
\n(C) 12.5 MeV<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 2.5 MeV<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

49<\/span><\/b>.\u00a0\u092f\u0926\u093f<\/span><\/b>\u00a0<\/span>\u0394<\/span>m\u00a0\u0928\u093e\u092d\u093f\u0915 \u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0939\u093e\u0938 \u0939\u0948<\/span><\/b>,M\u00a0\u0928\u093e\u092d\u093f\u0915 \u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0939\u0948 \u0924\u0925\u093e<\/span><\/b>\u00a0A\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0939\u0948<\/span><\/b>,\u00a0\u0924\u094b \u092a\u0948\u0915\u093f\u0902\u0917 \u092a\u094d\u0930\u0948\u0915\u094d\u0936\u0928 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0902\u0917\u0947<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0<\/span>\u0394<\/span>m\/A<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0<\/span>\u0394<\/span>m\/M
\n(C)\u00a0<\/span>\u0394<\/span>mc2<\/sup>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

50<\/span><\/b>.\u00a0\u092f\u0926\u093f \u092a\u0930\u092e\u093e\u0923\u0941<\/span><\/b>ZxA\u00a0\u0915\u0947 \u0928\u093e\u092d\u093f\u0915 \u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span><\/b>\u00a0M\u00a0\u0939\u0948 \u0924\u094b<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) M < [ZmP<\/sub>\u00a0+ (A-Z)mn<\/sub>]<\/span>\u00a0\u2713<\/span><\/b>
\n(B) M = [Zmp<\/sup>\u00a0+ (A-Z)mn<\/sub>]
\n(C) M > [Zmp<\/sub>\u00a0+ (A-Z)mn<\/sub>]
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

51<\/span><\/b>.\u00a0\u092f\u0926\u093f<\/span><\/b>\u00a0I1<\/sub>,I2<\/sub>\u00a0\u090f\u0935\u0902<\/span><\/b>\u00a0I3<\/sub>\u00a0\u0915\u094d\u0930\u092e\u0936\u0903<\/span><\/b>\u00a0<\/span>\u03b1<\/span>-,<\/span>\u03b2<\/span>–\u0924\u0925\u093e<\/span><\/b>\u00a0<\/span>\u03d2<\/span>–\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0940 \u0906\u092f\u0928\u0928 \u0936\u0915\u094d\u0924\u093f \u0939\u0948 \u0924\u094b<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) I1<\/sub>\u00a0> I2<\/sub>\u00a0> I3<\/sub><\/span>\u00a0\u2713<\/span><\/b>
\n(B) I1<\/sub>\u00a0< I2<\/sub>\u00a0< I3<\/sub>
\n(C) I1<\/sub>\u00a0> I2<\/sub>\u00a0\u0915\u093f\u0928\u094d\u0924\u0941<\/span>, I2<\/sub>\u00a0< I3<\/sub>
\n(D) I1<\/sub>\u00a0< I2<\/sub>\u00a0\u0915\u093f\u0928\u094d\u0924\u0941<\/span>, I2<\/sub>\u00a0> I3<\/sub><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

52<\/span><\/b>.\u00a0\u0907\u0928\u092e\u0947\u0902 \u0917\u093e\u092e\u093e-\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0940 \u0924\u0930\u0902\u0917 \u0932\u092e\u094d\u092c\u093e\u0908 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 0.07 \u00c5<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 0.7 \u00c5
\n(C) 7 \u00c5
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

53<\/span><\/b>.\u00a0<\/span>\u03b1<\/span>–\u0915\u0923 \u092a\u0930 \u0906\u0935\u0947\u0936 \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 9.6 x 10-10<\/sup>\u00a0e.s.u.<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 9.6 x 1020<\/sup>\u00a0\u0915\u0942\u0932\u092e\u094d\u092c<\/span>
\n(C) 9.6 x 1010<\/sup>\u00a0e.m.u.
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

54<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938 \u0915\u094d\u0937\u092f \u092e\u0947\u0902 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u092c\u0922\u093c \u091c\u093e\u0924\u0940 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0<\/span>\u03b1<\/span>-decay
\n(B)\u00a0<\/span>\u03b2<\/span>+-decay
\n(C)\u00a0<\/span>\u03b2<\/span>\u2013<\/span><\/sup>-decay<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0<\/span>\u03b3<\/span>-decay<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

55<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938 \u0915\u094d\u0937\u092f \u092e\u0947\u0902 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u0938\u092e\u093e\u0928 \u0930\u0939 \u091c\u093e\u0924\u0940 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0<\/span>\u03b1<\/span>-decay
\n(B)\u00a0<\/span>\u03b2<\/span>+-decay
\n(C)\u00a0<\/span>\u03b2<\/span>\u2013decay
\n(D)\u00a0<\/span>\u03b3<\/span>-decay<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

56<\/span><\/b>.\u00a0\u0938\u094d\u0925\u093e\u092f\u0940 \u0928\u093e\u092d\u093f\u0915\u094b\u0902 \u0915\u0947<\/span><\/b>\u00a0N\/Z\u00a0\u0915\u093e \u092e\u093e\u0928 \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 1 \u2013 1.6<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 1.6 \u2013 2.0
\n(C) 3.0 \u2013 4.0
\n(D) 4.0<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

57<\/span><\/b>.\u00a0\u0915\u094d\u0937\u092f \u0917\u0941\u0923\u093e\u0902\u0915 \u0915\u0940<\/span><\/b>\u00a0S.I.\u00a0\u0907\u0915\u093e\u0908 \u0939\u0948-<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u0939\u0930\u094d\u091f\u094d\u091c<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u092e\u0940\u091f\u0930<\/span>
\n(C)\u00a0\u092a\u094d\u0930\u0924\u093f \u092e\u0940\u091f\u0930<\/span>
\n(D)\u00a0\u0915\u0941\u091b \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

58<\/span><\/b>.\u00a0\u090f\u0915 \u0924\u0924\u094d\u0924\u094d\u0935<\/span><\/b>84<\/sub>X202<\/sup>\u00a0\u0915\u093e \u090f\u0915 \u0928\u093e\u092d\u093f\u0915 \u092a\u0939\u0932\u0947 \u090f\u0915<\/span><\/b><\/span>\u03b1<\/span>–\u0915\u0923 \u0924\u0925\u093e \u092b\u093f\u0930 \u090f\u0915<\/span><\/b><\/span>\u03b2<\/span>–\u0915\u0923 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u092a\u0930\u093f\u0923\u093e\u092e\u0940 \u0928\u093e\u092d\u093f\u0915 \u0915\u0940 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0917\u0940<\/span><\/b><\/span><\/span><\/p>\n

(A) 80
\n(B) 82
\n(C) 83<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 198<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

59<\/span><\/b>.\u00a0\u090f\u0915 \u0930\u0947\u0921\u093f\u092f\u094b\u0927\u0930\u094d\u092e\u0940 \u0928\u093e\u092d\u093f\u0915 \u0915\u0940 \u0905\u0930\u094d\u0926\u094d\u0927\u0906\u092f\u0941<\/span><\/b>\u00a020 h\u00a0\u0939\u0948\u0964<\/span><\/b>\u00a040\u00a0\u0918\u0902\u091f\u0947 \u092c\u093e\u0926 \u0930\u0947\u0921\u093f\u092f\u094b\u0927\u0930\u094d\u092e\u093f\u0924\u093e \u0915\u093f\u0924\u0928\u0940 \u0917\u0941\u0928\u0940 \u092a\u093e\u0908 \u091c\u093e\u090f\u0917\u0940<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A) 1\/4<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 1\/8
\n(C) 1\/2
\n(D) 1\/16<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

60<\/span><\/b>.\u00a090<\/sub>Th230<\/sup>\u00a0\u0915\u0947 \u090f\u0915 \u092a\u0930\u092e\u093e\u0923\u0941 \u092e\u0947\u0902 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A) 90
\n(B) 140<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 230
\n(D) 320<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

61<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u094b\u0902 \u0915\u0947 \u092e\u093f\u0932\u0928\u0947 \u0914\u0930 \u0928\u090f \u0928\u093e\u092d\u093f\u0915 (<\/span><\/b>nucleus)\u00a0\u0915\u0947 \u092c\u0928\u0928\u0947 \u0914\u0930 \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u092e\u0941\u0915\u094d\u0924 \u0939\u094b\u0928\u0947 \u0915\u0940 \u0918\u091f\u0928\u093e \u0915\u094b \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b><\/span><\/span><\/p>\n

(A)\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0938\u0902\u0932\u092f\u0928 (<\/span>fusion)<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0935\u093f\u0916\u0902\u0921\u0928 (<\/span>fission)
\n(C)\u00a0\u0936\u094d\u0930\u0902\u0916\u0932\u093e \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e (<\/span>chain reaction)
\n(D)\u00a0\u0924\u0924\u094d\u0924\u094d\u0935\u093e\u0902\u0924\u0930\u0923 (<\/span>transmutation)<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

62<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u092c\u0938\u0947 \u0938\u094d\u0925\u093e\u092f\u0940 \u0915\u094c\u0928 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a04<\/sup>2<\/sub>He
\n(B)\u00a012<\/sup>6<\/sub>C
\n(C)\u00a016<\/sup>8<\/sub>\u00a0O
\n(D)\u00a056<\/sup>26<\/sub>Fe<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

63<\/span><\/b>.\u00a0\u0939\u0940\u0932\u093f\u092f\u092e \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0940 \u0938\u0939\u0940 \u0930\u091a\u0928\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u090f\u0915 \u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>,\u00a0\u090f\u0915 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span>,\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span>
\n(B)\u00a0\u0926\u094b \u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>,\u00a0\u090f\u0915 \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span>,\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span>
\n(C)\u00a0\u0926\u094b \u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>,\u00a0\u0926\u094b \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span>,\u00a0\u0926\u094b \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0926\u094b \u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>,\u00a0\u0926\u094b \u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span>,\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

64<\/span><\/b>. \u00a07<\/sub>N14<\/sup>\u00a0\u0915\u0940 \u0928\u093e\u092d\u093f\u0915 \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) 7\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0914\u0930<\/span>\u00a07\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span>
\n(B) 7\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0914\u0930<\/span>\u00a07\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span>
\n(C) 7\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0914\u0930<\/span>\u00a07\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

65<\/span><\/b>.\u00a0\u092f\u0942\u0930\u0947\u0928\u093f\u092f\u092e \u0915\u0940 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e<\/span><\/b>\u00a0235\u00a0\u0914\u0930 \u092a\u0930\u092e\u093e\u0923\u0941-\u0915\u094d\u0930\u092e\u093e\u0902\u0915<\/span><\/b>\u00a092\u00a0\u0939\u0948\u0964 \u092f\u0942\u0930\u0947\u0928\u093f\u092f\u092e \u092a\u0930\u092e\u093e\u0923\u0941 \u092e\u0947\u0902 \u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span><\/b>,\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0914\u0930 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0917\u0940 \u0915\u094d\u0930\u092e\u0936\u0903-<\/span><\/b><\/span><\/span><\/p>\n

(A) 92, 143\u00a0\u0924\u0925\u093e<\/span>\u00a092<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 92\u00a0\u0924\u0925\u093e<\/span>\u00a0143 .
\n(C) 143,92\u00a0\u0924\u0925\u093e<\/span>\u00a092
\n(D): 135,0\u00a0\u0924\u0925\u093e<\/span>\u00a00<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

66<\/span><\/b>.\u00a0\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902 \u0938\u0902\u0930\u0915\u094d\u0937\u093f\u0924 \u092d\u094c\u0924\u093f\u0915 \u0930\u093e\u0936\u093f\u092f\u093e\u0901 \u0939\u0948<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A)\u00a0\u0915\u0941\u0932 \u0906\u0935\u0947\u0936<\/span>
\n(B)\u00a0\u0930\u0947\u0916\u0940\u092f \u0938\u0902\u0935\u0947\u0917<\/span>
\n(C)\u00a0\u0915\u094b\u0923\u0940\u092f \u0938\u0902\u0935\u0947\u0917<\/span>
\n(D)\u00a0\u0909\u092a\u0930\u094b\u0915\u094d\u0924 \u0938\u092d\u0940<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

67<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938 \u0915\u094d\u0937\u092f \u092e\u0947\u0902 \u092a\u0930\u092e\u093e\u0923\u0941 \u0938\u0902\u0916\u094d\u092f\u093e \u0918\u091f \u091c\u093e\u0924\u0940 \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A)\u00a0<\/span>\u03b1<\/span>-decay
\n(B)\u00a0<\/span>\u03b2<\/span>+-decay
\n(C)\u00a0<\/span>\u03b2<\/span>\u2013<\/span><\/sup>-decay<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0<\/span>\u03d2<\/span>-decay<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

68<\/span><\/b>.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u093f\u0938\u0947 \u0915\u0948\u0902\u0938\u0930 \u0915\u0947 \u0909\u092a\u091a\u093e\u0930 \u092e\u0947\u0902 \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/b>\u00a0?<\/span><\/span><\/p>\n

(A) K40<\/sup>
\n(B) Co60<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(C) Sr90<\/sup>
\n(D) I131<\/sup><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

69<\/span><\/b>.\u00a0\u090f\u0915 \u0930\u0947\u0921\u093f\u092f\u094b-\u0938\u092e\u0938\u094d\u0925\u093e\u0928\u093f\u0915 \u0915\u0940 \u0905\u0930\u094d\u0926\u094d\u0927-\u0906\u092f\u0941<\/span><\/b>\u00a05\u00a0\u0935\u0930\u094d\u0937 \u0939\u0948\u0964<\/span><\/b>\u00a015\u00a0\u0935\u0930\u094d\u0937\u094b\u0902 \u092e\u0947\u0902 \u0915\u094d\u0937\u092f \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u093e \u0905\u0902\u0936 \u0939\u094b\u0917\u093e:<\/span><\/b><\/span><\/span><\/p>\n

(A) 1\/15
\n(B) 1\/8<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 7\/8
\n(D) 14\/15<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

70<\/span><\/b>.\u00a0\u092f\u0926\u093f \u092a\u0930\u092e\u093e\u0923\u0941<\/span><\/b>ZxA\u00a0\u0915\u0947 \u0928\u093e\u092d\u093f\u0915 \u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span><\/b>\u00a0M\u00a0\u0939\u0948 \u0924\u094b<\/span><\/b>\u00a0\u2013<\/span><\/span><\/p>\n

(A) M < [ZmP<\/sub>\u00a0+ (A-Z)mn<\/sub>]<\/span>\u00a0\u2713<\/span><\/b>
\n(B) M = [Zmp<\/sup>\u00a0+ (A-Z)mn<\/sub>]
\n(C) M > [Zmp<\/sub>\u00a0+ (A-Z)mn<\/sub>]
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

1.\u00a0\u0938\u094c\u0930 \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0938\u094d\u0930\u094b\u0924 \u0939\u0948 (A)\u00a0\u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093f\u092f\u0930 \u0935\u093f\u0916\u0902\u0921\u0928 (B)\u00a0\u0928\u094d\u092f\u0942\u0915\u094d\u0932\u093f\u092f\u0930 \u0938\u0902\u0932\u092f\u0928\u00a0\u2713 (C) (A)\u00a0\u090f\u0935\u0902(B)\u00a0\u0926\u094b\u0928\u094b\u0902 (D)\u00a0\u0915\u094b\u0908 \u0928\u0939\u0940\u0902 \u00a0 2.\u00a0\u092a\u094d\u0930\u0925\u092e \u0928\u093e\u092d\u093f\u0915\u0940\u092f \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u093f\u0938\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u0940<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[],"class_list":["post-425","post","type-post","status-publish","format-standard","hentry","category-physics-objective"],"_links":{"self":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=425"}],"version-history":[{"count":2,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/425\/revisions"}],"predecessor-version":[{"id":1823,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/425\/revisions\/1823"}],"wp:attachment":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}