{"id":421,"date":"2021-05-31T03:40:00","date_gmt":"2021-05-31T03:40:00","guid":{"rendered":"https:\/\/class12.studyguruji.in\/?p=421"},"modified":"2023-10-22T08:25:53","modified_gmt":"2023-10-22T08:25:53","slug":"11-%e0%a4%b5%e0%a4%bf%e0%a4%95%e0%a4%bf%e0%a4%b0%e0%a4%a3-%e0%a4%a4%e0%a4%a5%e0%a4%be-%e0%a4%a6%e0%a5%8d%e0%a4%b0%e0%a4%b5%e0%a5%8d%e0%a4%af-%e0%a4%95%e0%a5%80-%e0%a4%a6%e0%a5%8d%e0%a4%b5%e0%a5%88-3","status":"publish","type":"post","link":"https:\/\/class12.studyguruji.in\/?p=421","title":{"rendered":"11. \u0935\u093f\u0915\u093f\u0930\u0923 \u0924\u0925\u093e \u0926\u094d\u0930\u0935\u094d\u092f \u0915\u0940 \u0926\u094d\u0935\u0948\u0924 \u092a\u094d\u0930\u0915\u0943\u0924\u093f"},"content":{"rendered":"

1.\u00a0\u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u092b\u094b\u091f\u094b \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0928\u093f\u0930\u094d\u092d\u0930 \u0915\u0930\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0924\u0940\u0935\u094d\u0930\u0924\u093e \u092a\u0930<\/span>
\n(B)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u092a\u0930<\/span>
\n(C)\u00a0\u0927\u093e\u0924\u0941 \u0915\u0947 \u0915\u093e\u0930\u094d\u092f-\u092b\u0932\u0928 \u092a\u0930<\/span>
\n(D)(B)\u00a0\u090f\u0935\u0902(<\/span>C)\u00a0\u0926\u094b\u0928\u094b\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

2.\u00a0\u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e (<\/span>E)\u00a0\u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0h<\/i><\/span>\u03c5<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0h<\/i><\/span>\u03c5<\/span>\/c
\n(C) 1\/2m<\/i><\/span>\u03bd<\/span>
\n(D)\u00a0h<\/i>\/p<\/i><\/span><\/span><\/p>\n

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

3.\u00a0<\/span><\/b>\u03bb<\/span><\/b>\u00a0\u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0935\u093e\u0932\u0947 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0hc<\/i><\/span>\u03bb<\/span>
\n(B)\u00a0hc<\/i>\/<\/span>\u03bb<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0h<\/i><\/span>\u03bb<\/span>\/c<\/i>
\n(D)\u00a0<\/span>\u03bb<\/span>\/hc<\/i><\/span><\/span><\/p>\n

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

4.\u00a0\u0907\u0928\u092e\u0947\u0902 \u0915\u094c\u0928 \u0905\u0928\u093e\u0935\u093f\u0937\u094d\u091f \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/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<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

(D)\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928<\/span><\/span><\/span><\/p>\n

5.\u00a0\u092b\u094b\u091f\u0949\u0928 \u0915\u093e \u0938\u0902\u0935\u0947\u0917 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0h<\/i><\/span>\u03c5<\/span>
\n(B)\u00a0h<\/i>\/<\/span>\u03c5<\/span>
\n(C)\u00a0h<\/i><\/span>\u03c5<\/span><\/i>\/c<\/i><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0mc<\/i>2<\/sup><\/span><\/span><\/p>\n

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

6.\u00a0\u092a\u094d\u0932\u093e\u0902\u0915 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u0940 \u0935\u093f\u092e\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) ML2<\/sup>T-1<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(B) ML2<\/sup>T-2<\/sup>
\n(C) MLT-1<\/sup>
\n(D) MLT-2<\/sup><\/span><\/span><\/p>\n

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

7.\u00a0\u092a\u094d\u0932\u093e\u0902\u0915 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u093e \u092e\u093e\u0928<\/span>\u00a0SI\u00a0\u092e\u093e\u0924\u094d\u0930\u0915 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0Js<\/i><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0Ws<\/i>
\n(C)\u00a0Js<\/i>-1<\/sup>
\n(D)\u00a0Js<\/i>-2<\/sup><\/span><\/span><\/p>\n

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

8.\u00a0\u090f\u0915\u094d\u0938 \u0915\u093f\u0930\u0923\u0947\u0902 \u092c\u0928\u0940 \u0939\u0948\u0902<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u090b\u0923\u093e\u0935\u093f\u0937\u094d\u091f \u0915\u0923\u094b\u0902 \u0938\u0947<\/span>
\n(B)\u00a0\u0927\u0928\u093e\u0935\u093f\u0937\u094d\u091f \u0915\u0923\u094b\u0902 \u0938\u0947<\/span>
\n(C)\u00a0\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0935\u093f\u0915\u093f\u0930\u0923 \u0938\u0947<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0928\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0938\u0947<\/span><\/span><\/span><\/p>\n

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

9.\u00a0\u0926\u093f\u090f \u0939\u0941\u090f \u0915\u093f\u0938 \u0927\u093e\u0924\u0941 \u0915\u093e \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u0915\u093e\u0930\u094d\u092f-\u092b\u0932\u0928 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u094b\u0921\u093f\u092f\u092e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u092c\u0947\u0930\u093f\u092f\u092e<\/span>
\n(C)\u00a0\u0932\u094b\u0939\u093e<\/span>
\n(D)\u00a0\u0924\u093e\u0901\u092c\u093e<\/span><\/span><\/span><\/p>\n

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

10.\u00a0\u0926\u094d\u0930\u0935\u094d\u092f \u0924\u0930\u0902\u0917 \u0915\u0940 \u092a\u0930\u093f\u0915\u0932\u094d\u092a\u0928\u093e \u0915\u093f\u092f\u093e<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0932\u093e\u0902\u0915 \u0928\u0947<\/span>
\n(B)\u00a0\u091f\u0949\u092e\u0938\u0928 \u0928\u0947<\/span>
\n(C)\u00a0\u0906\u0907\u0902\u0938\u094d\u091f\u0940\u0928 \u0928\u0947<\/span>
\n(D)\u00a0\u0921\u0940-\u092c\u094d\u0930\u0949\u0917\u094d\u0932\u0940 \u0928\u0947<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

11.\u00a0\u0935\u0939 \u0918\u091f\u0928\u093e \u091c\u093f\u0938\u092e\u0947\u0902 \u0915\u0941\u091b \u0927\u093e\u0924\u0941\u0913\u0902 \u092a\u0930 \u092a\u094d\u0930\u0915\u093e\u0936 \u092a\u0921\u093c\u0928\u0947 \u092a\u0930 \u0909\u0928\u0938\u0947 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902<\/span>,\u00a0\u0915\u0939\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d \u092a\u094d\u0930\u092d\u093e\u0935<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u092b\u094b\u091f\u094b\u0917\u094d\u0930\u093e\u092b\u0940<\/span>
\n(C)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936\u092e\u093f\u0924\u093f<\/span>
\n(D)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0938\u0902\u0936\u094d\u0932\u0947\u0937\u0923<\/span><\/span><\/span><\/p>\n

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

12.\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d \u092a\u094d\u0930\u092d\u093e\u0935 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0924\u0930\u0902\u0917-\u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0915\u0947 \u0915\u093e\u0930\u0923<\/span>
\n(B)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0915\u0923-\u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0915\u0947 \u0915\u093e\u0930\u0923<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0926\u094b\u0928\u094b\u0902 \u0939\u0940 \u0915\u093e\u0930\u0923\u094b\u0902 \u0938\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><\/p>\n

13.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u0940 \u0935\u093f\u092e\u093e\u090f\u0901 \u092a\u094d\u0932\u093e\u0902\u0915 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u0947 \u0938\u092e\u093e\u0928 \u0939\u094b\u0917\u0940<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092c\u0932<\/span>\u00a0x\u00a0\u0938\u092e\u092f<\/span>
\n(B)\u00a0\u092c\u0932<\/span>\u00a0x\u00a0\u0926\u0942\u0930\u0940<\/span>
\n(C)\u00a0\u092c\u0932<\/span>\u00a0x\u00a0\u091a\u093e\u0932<\/span>
\n(D)\u00a0\u092c\u0932<\/span>\u00a0\u2013\u00a0\u0926\u0942\u0930\u0940<\/span>\u00a0x\u00a0\u0938\u092e\u092f<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

14.\u00a0\u092f\u0926\u093f \u090f\u0915 \u092e\u0941\u0915\u094d\u0924 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0926\u0941\u0917\u0928\u0940 \u0939\u094b \u091c\u093e\u092f\u0947 \u0924\u094b \u0921\u0940.-\u092c\u094d\u0930\u094b\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u092e\u0947\u0902 \u092c\u0926\u0932\u093e\u0935 \u0939\u094b\u0917\u093e :<\/span><\/span><\/b><\/span><\/p>\n

(A) 1\/<\/span>\u221a<\/span>2<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0<\/span>\u221a<\/span>2
\n(C) 1\/2
\n(D) 2<\/span><\/span><\/p>\n

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

15.\u00a0\u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0938\u0902\u0915\u0947\u0924\u094b\u0902 \u092e\u0947\u0902 \u0935\u094d\u092f\u0915\u094d\u0924 \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0938\u0902\u092c\u0902\u0927\u094b\u0902 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0921\u0940-\u092c\u094d\u0930\u0949\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f<\/span>\u00a0<\/span><\/b>\u03bb<\/span><\/b>\u00a0\u0915\u093e \u0917\u0932\u0924 \u0938\u0942\u0924\u094d\u0930 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0h<\/i>\/m<\/i><\/span>\u03bd<\/span><\/i>
\n(B)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0h<\/i>\/<\/span>\u221a<\/span>2mE<\/i>
\n(C)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0h<\/i>\/<\/span>\u221a<\/span>3m<\/i>KT
\n(D)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0<\/span>\u221a<\/span>2m<\/i>qV<\/i>\/h<\/i><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

16.\u00a0\u092f\u0926\u093f \u0935\u093f\u0930\u093e\u092e \u0938\u0947 \u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u094b<\/span>\u00a01\u00a0\u0935\u094b\u0932\u094d\u091f \u0935\u093f\u092d\u0935\u093e\u0902\u0924\u0930 \u0906\u0930\u094b\u092a\u093f\u0924 \u0915\u0930 \u0924\u094d\u0935\u0930\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u090f \u0924\u094b \u0909\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0939\u094b\u0917\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 1.6 x 10-19<\/sup>\u00a0\u091c\u0942\u0932<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B) 7.6 x 10-19<\/sup>\u00a0\u091c\u0942\u0932<\/span>
\n(C) 1.6 x 10-13<\/sup>\u00a0\u091c\u0942\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

17.\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u090f\u0935\u0902 \u090f\u0915 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u0924\u0930\u0902\u0917 \u0932\u0902\u092c\u093e\u0908<\/span>\u00a01.00\u00a0nm\u00a0\u0939\u0948\u0902\u0964 \u0907\u0928\u092e\u0947\u0902 \u0915\u093f\u0938\u0915\u0947 \u0938\u0902\u0935\u0947\u0917 \u0915\u093e \u092e\u093e\u0928 \u0905\u0927\u093f\u0915 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span>
\n(B)\u00a0\u092b\u094b\u091f\u0949\u0928<\/span>
\n(C)\u00a0\u0926\u094b\u0928\u094b\u0902 \u0915\u0947 \u0938\u0902\u0935\u0947\u0917\u094b\u0902 \u0915\u0947 \u092e\u093e\u0928 \u0924\u0941\u0932\u094d\u092f \u0939\u0948\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><\/p>\n

18.\u00a0\u0935\u093f\u092d\u0935\u093e\u0902\u0924\u0930<\/span>\u00a0V<\/i>\u00a0\u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u0906\u0935\u0947\u0936 \u0915\u0923 \u091c\u093f\u0938\u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928<\/span>\u00a0m<\/i>\u00a0\u090f\u0935\u0902 \u0906\u0935\u0947\u0936<\/span>\u00a0q<\/i>\u00a0\u0939\u0948 \u0915\u093e \u0926\u0947 \u092c\u094d\u0930\u0949\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0939\u094b\u0917\u093e<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0qV\u00a0<\/i>\/\u00a0m<\/i>
\n(B)\u00a0<\/span>\u221a<\/span>2mqV<\/i>
\n(C) h\/<\/span>\u221a<\/span>2mV<\/i>
\n(D) h\/<\/span>\u221a<\/span>2m<\/i>|q<\/i>|V<\/i><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

19.\u00a0\u090f\u0915 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e<\/span>\u00a010 keV\u00a0\u0939\u0948\u0964 \u092f\u0939 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0935\u0930\u094d\u0923\u0915\u094d\u0930\u092e \u0915\u0947 \u0915\u093f\u0938 \u092d\u093e\u0917 \u092e\u0947\u0902 \u0938\u094d\u0925\u093f\u0924 \u0939\u094b\u0917\u093e<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) X-rays<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0<\/span>\u03d2<\/span>-rays
\n(C) microwave
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

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

20.\u00a0\u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u0915\u0923 \u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0905\u0928\u093f\u0936\u094d\u091a\u093f\u0924\u0924\u093e<\/span>\u00a0<\/span><\/b>\u0394<\/span><\/b>x\u00a0\u0939\u0948 \u0924\u094b \u0907\u0938\u0915\u0947 \u0938\u0902\u0935\u0947\u0917 \u092e\u0947\u0902 \u0905\u0928\u093f\u0936\u094d\u091a\u093f\u0924\u0924\u093e \u092c\u0921\u093c\u0940 \u0939\u094b\u0917\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0h<\/i>\/4<\/span>\u03c0\u0394<\/span>x\u00a0<\/span><\/i>\u0938\u0947<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 2h<\/i>\/<\/span>\u0394<\/span>x<\/span><\/i>\u00a0\u0938\u0947<\/span>
\n(C) 3h<\/i>\/<\/span>\u0394<\/span>x<\/span><\/i>\u00a0\u0938\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><\/p>\n

21.\u00a0\u0924\u0940\u0928 \u0906\u0935\u0943\u0924\u094d\u0924\u093f\u092f\u094b\u0902<\/span>\u00a0<\/span><\/b>\u03bd<\/span><\/b>1<\/span><\/sub><\/b>,<\/span><\/b>\u03bd<\/span><\/b>2<\/span><\/sub><\/b>\u00a0\u090f\u0935\u0902<\/span>\u00a0<\/span><\/b>\u03bd<\/span><\/b>3<\/span><\/sub><\/b>\u00a0\u0915\u0947 \u0932\u093f\u090f \u092a\u094d\u0930\u0915\u093e\u0936 \u0935\u0948\u0926\u094d\u092f\u0941\u0924 \u0927\u093e\u0930\u093e<\/span>\u00a0i\u00a0\u0915\u093e \u0935\u093f\u092d\u0935\u093e\u0902\u0924\u0930<\/span>\u00a0V\u00a0\u0915\u0947 \u0938\u093e\u0925 \u0917\u094d\u0930\u093e\u092b \u0905\u0902\u0915\u093f\u0924 \u0939\u0948\u0964 \u0924\u092c<\/span><\/span><\/b><\/span><\/p>\n

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

(A)\u00a0<\/span>\u03bd<\/span>1<\/span><\/sub>\u00a0>\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub>\u00a0> V2<\/sub>
\n(B)\u00a0<\/span>\u03bd<\/span>1<\/span><\/sub>\u00a0=\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub>\u00a0=\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub>
\n(C)\u00a0<\/span>\u03bd<\/span>1<\/span><\/sub>\u00a0<\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub>\u00a0<\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0<\/span>\u03bd<\/span>1<\/span><\/sub>\u00a0=\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub>\u00a0<\u00a0<\/span>\u03bd<\/span>2<\/span><\/sub><\/span><\/p>\n

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

22.\u00a0\u0915\u093f\u0938\u0940 \u0915\u0923 \u0915\u093e \u0938\u0902\u0935\u0947\u0917 \u0926\u0941\u0917\u0941\u0928\u093e \u0915\u0930 \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u0940 \u0924\u0930\u0902\u0917 \u0932\u092e\u094d\u092c\u093e\u0908 \u0915\u093f\u0924\u0928\u0940 \u0917\u0941\u0928\u0940 \u0939\u094b \u091c\u093e\u090f\u0917\u0940<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 1\/2<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 2
\n(C) 3
\n(D)\u00a0<\/span>\u221a<\/span>2<\/span><\/span><\/p>\n

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

23. V\u00a0\u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0935\u093e\u0932\u0947 \u092b\u094b\u091f\u094b\u0928 \u0915\u0947 \u0938\u093e\u0925 \u0938\u0902\u0935\u0947\u0917 \u091c\u0941\u0921\u093c\u093e \u0939\u0941\u0906 \u0939\u0948\u0964 \u092f\u0926\u093f \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u093e \u0935\u0947\u0917<\/span>\u00a0c\u00a0\u0939\u094b \u0924\u094b \u0938\u0902\u0935\u0947\u0917 \u0939\u094b\u0917\u093e:<\/span><\/span><\/b><\/span><\/p>\n

(A) hV\/c2<\/sup>
\n(B) hV\/c<\/span>\u00a0\u2713<\/span><\/b>
\n(C) V\/c
\n(D) hVc<\/span><\/span><\/p>\n

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

24.\u00a0\u090f\u0915 \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u093e \u0915\u093e\u0930\u094d\u092f \u092b\u0932\u0928<\/span>\u00a04ev\u00a0\u0939\u0948\u0964 \u0935\u0947\u0939\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u0939\u094b\u0917\u093e :<\/span><\/span><\/b><\/span><\/p>\n

(A) 540\u00a0nm
\n(B) 400\u00a0nm
\n(C) 310\u00a0nm<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 220\u00a0nm<\/span><\/span><\/p>\n

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

25.\u00a0\u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u0927\u093e\u0924\u0941 \u0915\u0947 \u0938\u0924\u0939 \u092a\u0930 \u0906\u092a\u0924\u093f\u0924 \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0926\u0941\u0917\u0941\u0928\u093e \u0915\u0930 \u0926\u093f\u092f\u093e \u091c\u093e\u092f \u0924\u094b \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0905\u0927\u093f\u0915\u0924\u092e \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0939\u094b \u091c\u093e\u090f\u0917\u0940 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0926\u0941\u0917\u0941\u0928\u093e<\/span>
\n(B)\u00a0\u0926\u0941\u0917\u0941\u0928\u093e \u0938\u0947 \u091c\u094d\u092f\u093e\u0926\u093e<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0928\u0939\u0940\u0902 \u092c\u0926\u0932\u0947\u0917\u093e<\/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><\/p>\n

26.\u00a0\u092b\u094b\u091f\u094b \u0938\u0947\u0932 \u0906\u0927\u093e\u0930\u093f\u0924 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d \u092a\u094d\u0930\u092d\u093e\u0935 \u092a\u0930<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0927\u093e\u0930\u093e \u0915\u0947 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u092a\u094d\u0930\u092d\u093e\u0935 \u092a\u0930<\/span>
\n(C)\u00a0\u0927\u093e\u0930\u093e \u0915\u0947 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092a\u094d\u0930\u092d\u093e\u0935 \u092a\u0930<\/span>
\n(D)\u00a0\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092a\u094d\u0930\u0947\u0930\u0923 \u092a\u0930<\/span><\/span><\/span><\/p>\n

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

27.\u00a0\u0935\u093f\u092d\u0935\u093e\u0902\u0924\u0930<\/span>\u00a0V<\/i>\u00a0\u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0947 \u0932\u093f\u090f \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0921\u0940-\u092c\u094d\u0930\u0949\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f<\/span>\u00a0<\/span><\/b>\u03bb<\/span><\/b>\u00a0\u0915\u093e \u0938\u0939\u0940 \u092e\u093e\u0928 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 12.26\/<\/span>\u221a<\/span>V<\/span><\/i>\u00a0\u00c5<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0<\/span>\u221a<\/span>V<\/span><\/i>\u00a0\/ 12.26 \u00c5
\n(C)\u00a0h<\/i>\u00a0\/ 12.26 \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><\/p>\n

28.\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e \u0935\u093f\u092d\u0935\u093e\u0928\u094d\u0924\u0930<\/span>\u00a0V<\/i>\u00a0\u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u0915\u0930\u0928\u0947 \u092a\u0930 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0926\u0947 \u092c\u094d\u0930\u094b\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917 \u0932\u0902\u092c\u093e\u0908 \u0939\u094b\u0917\u0940<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0eV<\/i>
\n(B)\u00a0<\/span>\u221a<\/span>2meV<\/i><\/span><\/span><\/p>\n

(C) 1em
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

29.\u00a0\u0921\u0947\u0935\u093f\u0938\u0928-\u091c\u0930\u094d\u092e\u0930 \u092a\u094d\u0930\u092f\u094b\u0917 \u0938\u0947 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u091c\u093f\u0938 \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0915\u093e \u0938\u0924\u094d\u092f\u093e\u092a\u0928 \u0939\u0941\u0906 \u0935\u0939 \u0925\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u0923 \u092a\u094d\u0930\u0915\u0943\u0924\u093f<\/span>
\n(B)\u00a0\u0924\u0930\u0902\u0917 \u092a\u094d\u0930\u0915\u0943\u0924\u093f<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923<\/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><\/p>\n

30.\u00a0\u0924\u093e\u0901\u092c\u093e \u0915\u093e \u0915\u093e\u0930\u094d\u092f\u092b\u0932\u0928 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u0941\u091b \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0935\u094b\u0932\u094d\u091f<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0915\u0941\u091b \u091c\u0942\u0932<\/span>
\n(C)\u00a0\u0915\u0941\u091b \u0935\u093e\u091f<\/span>
\n(D)\u00a0\u0915\u0941\u091b \u0935\u094b\u0932\u094d\u091f<\/span><\/span><\/span><\/p>\n

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

31.\u00a0\u092f\u0926\u093f \u0928\u0940\u0932\u0947 \u0930\u0902\u0917 \u0915\u0947 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e<\/span>\u00a0E1<\/sub>\u00a0\u0914\u0930 \u092a\u0940\u0932\u0947 \u0930\u0902\u0917 \u0915\u0947 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e<\/span>\u00a0E2<\/sub>\u00a0\u0939\u094b \u0924\u094b<\/span><\/span><\/b><\/span><\/p>\n

(A) E1<\/sub>\u00a0= E2<\/sub>
\n(B) E1<\/sub>\u00a0> E2<\/sub><\/span>\u00a0\u2713<\/span><\/b>
\n(C) E1<\/sub>\u00a0< E2<\/sub>
\n(D) E1<\/sub>\u00a0= 2E2<\/sub><\/span><\/span><\/p>\n

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

32.\u00a0\u090f\u0915 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e (<\/span>E),\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0939\u0948\u0964 \u092e\u093e\u0928\u093e<\/span>\u00a0<\/span><\/b>\u03bb<\/span><\/b>1<\/span><\/sub><\/b>\u00a0\u092a\u094d\u0930\u094b\u091f\u0949\u0928 \u0915\u0940 \u0921\u0940 \u092c\u094d\u0930\u094b\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0939\u0948 \u0924\u0925\u093e<\/span>\u00a0<\/span><\/b>\u03bb<\/span><\/b>2<\/span><\/sub><\/b>\u00a0\u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u0939\u0948\u0964<\/span>\u00a0<\/span><\/b>\u03bb<\/span><\/b>1<\/span><\/sub><\/b>\/<\/span><\/b>\u03bb<\/span><\/b>2<\/span><\/sub><\/b>\u00a0\u0915\u093e \u0905\u0928\u0941\u092a\u093e\u0924 \u0938\u092e\u093e\u0928\u0941\u092a\u093e\u0924\u0940 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) E-2<\/sup>
\n(B) E-1<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(C) E1\/2<\/sup>
\n(D) E0<\/sup><\/span><\/span><\/p>\n

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

33.\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u092b\u094b\u091f\u0949\u0928\u094b\u0902 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0939\u0948<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0h<\/i><\/span>\u03bd<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0h<\/i><\/span>\u03c5<\/span>\/c
\n(C)\u00a0h<\/i>\/<\/span>\u03c5<\/span>
\n(D)\u00a0<\/span>\u03c5<\/span>\/h<\/i><\/span><\/span><\/p>\n

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

34.\u00a0\u0915\u093f\u0938\u0940<\/span>\u00a0m<\/i>\u00a0\u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0924\u0925\u093e<\/span>\u00a0q<\/i>\u00a0\u0906\u0935\u0947\u0936 \u0915\u0947 \u0915\u0923 \u0915\u094b<\/span>\u00a0V\u00a0\u0935\u093f\u092d\u0935 \u0926\u094d\u0935\u093e\u0930\u093e \u0924\u094d\u0935\u0930\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0915\u0923 \u0915\u0940 \u0926\u0947-\u092c\u094d\u0930\u094b\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u0939\u094b\u0917\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0Vh<\/i>\/<\/span>\u221a<\/span>2qm
\n(B)\u00a0q<\/i>\/<\/span>\u221a<\/span>2mV<\/i>
\n(C) h\/<\/span>\u221a<\/span>2mV<\/i><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0mh<\/i>\/<\/span>\u221a<\/span>2q<\/i>V<\/span><\/span><\/p>\n

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

35. 1014<\/sup>\u00a0Hz\u00a0\u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0915\u0940<\/span>\u00a06.62 J\u00a0\u0935\u093f\u0915\u0940\u0930\u094d\u0923 \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u092b\u094b\u091f\u0949\u0928\u094d\u0938 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0917\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 1010<\/sup>
\n(B) 1015<\/sup>
\n(C) 1020<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(D) 1025<\/sup><\/span><\/span><\/p>\n

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

36.\u00a0\u092a\u094d\u0932\u093e\u0902\u0915 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u093e \u092e\u093e\u0928 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 6.63 x 10-34<\/sup>\u00a0Js<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 6.6 x 10-24<\/sup>\u00a0JS-1
\n(C) 6.67 x 10-11<\/sup>\u00a0Nkg-l<\/sup>
\n(D) 9 x 109\u00a0<\/sup>N<\/span><\/span><\/p>\n

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

37.\u00a0\u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u0927\u093e\u0924\u0941 \u092a\u0930 \u091c\u093f\u0938\u0915\u093e \u0915\u093e\u0930\u094d\u092f-\u092b\u0932\u0928<\/span>\u00a0<\/span><\/b>\u03d5<\/span><\/b>\u00a0\u0939\u0948<\/span>,\u00a0\u0906\u092a\u0924\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f<\/span>\u00a0<\/span><\/b>\u03bd<\/span><\/b>\u00a0\u0939\u0948 \u0924\u094b \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u092b\u094b\u091f\u094b \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u092e\u0939\u0924\u094d\u0924\u092e \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e<\/span>\u00a0E\u00a0\u091c\u093f\u0938 \u0938\u0902\u092c\u0902\u0927 \u0938\u0947 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>,\u00a0\u0935\u0939 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) E =\u00a0h<\/i><\/span>\u03c5<\/span>
\n(B) E =\u00a0<\/span>\u03d5<\/span>\u00a0h<\/i><\/span>\u03c5<\/span>
\n(C) E =\u00a0h<\/i><\/span>\u03c5<\/span>\u00a0–<\/span>\u03d5<\/span>\u00a0\u2713<\/span><\/b>
\n(D) E =\u00a0h<\/i><\/span>\u03c5<\/span>\/<\/span>\u03d5<\/span><\/span><\/p>\n

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

38.\u00a0\u090f\u0915 \u092a\u094d\u0930\u0915\u093e\u0936-\u0938\u0941\u0917\u094d\u0930\u093e\u0939\u0940 \u0927\u093e\u0924\u0941 (<\/span><\/span><\/b>\u03d5<\/span><\/b>\u00a0= 2.1\u00a0eV<\/i>)\u00a0\u0938\u0947 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u092b\u094b\u091f\u094b\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u092e\u0939\u0924\u094d\u0924\u092e \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e<\/span>\u00a00.9\u00a0eV<\/i>\u00a0\u0939\u0948\u0964 \u0906\u092a\u0924\u093f\u0924 \u092b\u094b\u091f\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 2.1\u00a0eV<\/i>
\n(B) 0.9\u00a0eV<\/i>
\n(C) 3\u00a0eV<\/i><\/span>\u00a0\u2713<\/span><\/b>
\n(D) 1.2\u00a0eV<\/i><\/span><\/span><\/p>\n

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

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

39.\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d \u092e\u0947\u0902 \u0906\u092a\u0924\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0910\u0936\u094b\u0932\u094d\u0921 (\u0926\u0947\u0939\u0932\u0940) \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0939\u0948 \u091c\u093f\u0938 \u092a\u0930<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u092e\u093e\u0924\u094d\u0930 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u0964<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e \u0935\u0947\u0917 \u092e\u0939\u0924\u094d\u0924\u092e \u0939\u094b\u0924\u093e \u0939\u0948<\/span>
\n(C)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0947 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u0928 \u0915\u0940 \u0926\u0930 \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u0939\u094b\u0924\u0940 \u0939\u0948<\/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><\/p>\n

40.\u00a0\u0921\u0940-\u092c\u094d\u0930\u0949\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0<\/span>\u03bb<\/span>\u00a0= h\/m<\/i><\/span>\u03bd<\/span><\/i>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0hm<\/i><\/span>\u03bd<\/span><\/i>
\n(C)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0h<\/i><\/span>\u03bd<\/span><\/i>
\n(D)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0mc<\/i>2<\/sup>\/<\/span>\u03bd<\/span><\/i><\/span><\/p>\n

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

41.\u00a0\u090f\u0915\u094d\u0938-\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0947 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0915\u093e \u0915\u094d\u0930\u092e \u0939\u094b\u0924\u093e \u0939\u0948\u0902-<\/span><\/span><\/b><\/span><\/p>\n

(A) 1\u00a0cm
\n(B) 1\u00a0m
\n(C) 1\u00a0micron
\n(D) 1 \u00c5<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

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

42.\u00a0\u092a\u094d\u0930\u0915\u093e\u0936-\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d \u092a\u094d\u0930\u092d\u093e\u0935 \u092e\u0947\u0902 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u094b\u0902 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0938\u092e\u093e\u0928\u0941\u092a\u093e\u0924\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0906\u092a\u0924\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0915\u0947 \u0935\u0930\u094d\u0917 \u0915\u0947<\/span>
\n(B)\u00a0\u0906\u092a\u0924\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0915\u0947<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0906\u092a\u0924\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0915\u0947<\/span>
\n(D)\u00a0\u0906\u092a\u0924\u093f\u0924 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0915\u0947 \u0935\u0947\u0917 \u0915\u0947<\/span><\/span><\/span><\/p>\n

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

43.\u00a0\u0915\u093e\u0930\u094d\u092f-\u092b\u0932\u0928 \u0906\u0935\u0936\u094d\u092f\u0915 \u090a\u0930\u094d\u091c\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u094b \u0909\u0924\u094d\u0924\u0947\u091c\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<\/span>
\n(B)\u00a0\u090f\u0915\u094d\u0938-\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u094b \u0909\u0924\u094d\u092a\u0928\u094d\u0928 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<\/span>
\n(C)\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u094b \u0938\u0924\u0939 \u0938\u0947 \u0920\u0940\u0915 \u092c\u093e\u0939\u0930 \u0928\u093f\u0915\u093e\u0932\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<\/span><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0940 \u091b\u093e\u0928\u092c\u0940\u0928 \u0915\u0947 \u0932\u093f\u090f<\/span><\/span><\/span><\/p>\n

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

44.\u00a0\u0935\u093f\u092d\u0935\u093e\u0902\u0924\u0930<\/span>\u00a0V\u00a0\u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e \u0921\u0940-\u092c\u094d\u0930\u0949\u0917\u094d\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u0915\u093e \u0935\u094d\u092f\u0902\u091c\u0915 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0h<\/i>\/m<\/i>
\n(B)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0h<\/i>\/<\/span>\u221a<\/span>m<\/span><\/i>eV<\/i><\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0<\/span>\u03bb<\/span>\u00a0=\u00a0eV<\/i>
\n(D)\u00a0<\/span>\u03bb<\/span>\u00a0= 1\/2mV<\/i>2<\/sup><\/span><\/span><\/p>\n

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

45.\u00a0\u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u0927\u093e\u0924\u0941 \u0915\u093e \u0915\u093e\u0930\u094d\u092f-\u092b\u0932\u0928<\/span>\u00a02.8eV\u00a0\u0939\u094b<\/span>,\u00a0\u0924\u094b \u0926\u0947\u0939\u0932\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0939\u094b\u0917\u093e<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 4000 \u00c5
\n(B) 5000 \u00c5
\n(C) 4433 \u00c5<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 3344 \u00c5<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

1.\u00a0\u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u092b\u094b\u091f\u094b \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0928\u093f\u0930\u094d\u092d\u0930 \u0915\u0930\u0924\u0940 \u0939\u0948\u00a0\u2013 (A)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0924\u0940\u0935\u094d\u0930\u0924\u093e \u092a\u0930 (B)\u00a0\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0927\u094d\u092f \u092a\u0930 (C)\u00a0\u0927\u093e\u0924\u0941 \u0915\u0947 \u0915\u093e\u0930\u094d\u092f-\u092b\u0932\u0928 \u092a\u0930<\/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-421","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\/421","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=421"}],"version-history":[{"count":3,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions"}],"predecessor-version":[{"id":1819,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions\/1819"}],"wp:attachment":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}