{"id":377,"date":"2021-05-31T03:40:00","date_gmt":"2021-05-31T03:40:00","guid":{"rendered":""},"modified":"2023-10-22T08:04:00","modified_gmt":"2023-10-22T08:04:00","slug":"8-%e0%a4%b5%e0%a5%88%e0%a4%a6%e0%a5%8d%e0%a4%af%e0%a5%81%e0%a4%a4-%e0%a4%9a%e0%a5%81%e0%a4%ae%e0%a5%8d%e0%a4%ac%e0%a4%95%e0%a5%80%e0%a4%af-%e0%a4%a4%e0%a4%b0%e0%a4%82%e0%a4%97%e0%a5%87%e0%a4%82-2","status":"publish","type":"post","link":"https:\/\/class12.studyguruji.in\/?p=377","title":{"rendered":"8. \u0935\u0948\u0926\u094d\u092f\u0941\u0924 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u0947\u0902"},"content":{"rendered":"

1. \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u093e \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u0939\u0948:<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) X-\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(B) Y-\u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span> \u2713<\/span><\/b>
(C) \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0924\u0930\u0902\u0917<\/span>
(D) \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

2. \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u092a\u0930\u093e\u0938 \u0939\u0948 :<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) 3 x 108<\/sup> \u2013 4 x 104<\/sup>
(B) 7.5 x 104<\/sup> \u2013 3.8 x 1011<\/sup>
(C) 3 x 1021<\/sup> \u2013 3 x 1018<\/sup>
(D) 3 x 1011<\/sup>\u2013 3 x 1018<\/sup><\/span> \u2713<\/span><\/b><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

3. \u092e\u093e\u0907\u0915\u094d\u0930\u094b\u0924\u0930\u0902\u0917 \u0935\u0947 \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915 \u0924\u0930\u0902\u0917 \u0939\u0948 \u091c\u093f\u0928\u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u092a\u0930\u093e\u0938 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0939\u0930\u094d\u091f\u094d\u091c<\/span>
(B) \u092e\u0947\u0917\u093e \u0939\u0930\u094d\u091f\u094d\u091c<\/span>
(C) \u091c\u093f\u0917\u093e \u0939\u0930\u094d\u091f\u094d\u091c<\/span><\/span> \u2713<\/span><\/b>
(D) \u0939\u0930\u094d\u091f\u094d\u091c \u0939\u0948\u0902\u0964<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

4. \u0924\u094d\u0935\u0930\u093f\u0924 \u0906\u0935\u0947\u0936 \u0909\u0924\u094d\u092a\u0928\u094d\u0928 \u0915\u0930\u0924\u0940 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) <\/span>\u03b1<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(B) <\/span>\u03b3<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(C) <\/span>\u03b2<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(D) \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u0947\u0902<\/span><\/span> \u2713<\/span><\/b><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/p>\n

5. \u0926\u0942\u0930 \u0938\u0902\u091a\u093e\u0930 \u0915\u0947 \u0932\u093f\u090f \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0935\u093f\u0915\u093f\u0930\u0923 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u092a\u0930\u093e\u092c\u0948\u0902\u0917\u0928\u0940<\/span>
(B) \u0905\u0935\u0930\u0915\u094d\u0924<\/span>
(C) \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0924\u0930\u0902\u0917\u0947\u0902<\/span><\/span> \u2713<\/span><\/b>
(D) \u0926\u0943\u0936\u094d\u092f \u092a\u094d\u0930\u0915\u093e\u0936<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

6. \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u0940 \u0924\u0930\u0902\u0917 \u0932\u0902\u092c\u093e\u0908 \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u090f\u0915\u094d\u0938-\u0930\u0947<\/span>
(B) \u0930\u0947\u0921\u093f\u092f\u094b-\u0924\u0930\u0902\u0917<\/span>
(C) \u0917\u093e\u092e\u093e-\u0930\u0947<\/span><\/span> \u2713<\/span><\/b>
(D) \u091f\u0947\u0932\u0940\u0935\u093f\u091c\u0928-\u0924\u0930\u0902\u0917<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

7. \u0928\u093f\u092e\u094d\u0928\u093e\u0902\u0915\u093f\u0924 \u092e\u0947\u0902 \u0915\u093f\u0938\u0947 \u092e\u0939\u0924\u094d\u0924\u092e \u092c\u0947\u0927\u0928 \u0915\u094d\u0937\u092e\u0924\u093e \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) X-\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(B) \u0915\u0948\u0925\u094b\u0921 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(C) <\/span>\u03b1<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(D) <\/span>\u03b3<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span> \u2713<\/o:p><\/span><\/b><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

8. \u092a\u094d\u0930\u092f\u094b\u0917\u0936\u093e\u0932\u093e\u0913\u0902 \u0915\u094b \u092c\u0948\u0915\u094d\u091f\u0940\u0930\u093f\u092f\u093e \u0938\u0947 \u092e\u0941\u0915\u094d\u0924 \u0915\u0930\u093e\u0928\u0947 \u092e\u0947\u0902 \u0909\u092a\u092f\u094b\u0917 \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0905\u0932\u094d\u091f\u094d\u0930\u093e\u0935\u093e\u092f\u0932\u0947\u091f \u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span> \u2713<\/span><\/b>
(B) \u0905\u0935\u0930\u0915\u094d\u0924 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(C) \u0926\u0943\u0936\u094d\u092f \u092a\u094d\u0930\u0915\u093e\u0936<\/span>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/p>\n

9. \u092e\u093e\u0907\u0915\u094d\u0930\u094b\u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0938\u0947 \u0915\u092e<\/span>
(B) \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0938\u0947 \u0905\u0927\u093f\u0915<\/span><\/span> \u2713<\/span><\/b>
(C) \u092a\u094d\u0930\u0915\u093e\u0936 \u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u0938\u0947 \u0905\u0927\u093f\u0915<\/span>
(D) \u0936\u094d\u0930\u0935\u094d\u092f \u092a\u0930\u093e\u0938 \u0938\u0947 \u0915\u092e<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

10. \u0915\u093f\u0938\u0915\u0947 \u0932\u093f\u090f \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u092f \u0915\u093e \u092e\u093e\u0928 \u0905\u0927\u093f\u0915\u0924\u092e \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917<\/span><\/span> \u2713<\/span><\/b>
(B) \u090f\u0915\u094d\u0938 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(C) \u092a\u0930\u093e\u092c\u0948\u0902\u0917\u0928\u0940<\/span>
(D) \u0905\u0935\u0930\u0915\u094d\u0924 \u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

11. \u0905\u0935\u0930\u0915\u094d\u0924 \u0915\u093f\u0930\u0923\u0947\u0902 \u0907\u0928 \u0915\u094d\u0937\u0947\u0924\u094d\u0930\u094b\u0902 \u0915\u0947 \u092e\u0927\u094d\u092f \u0938\u094d\u0925\u093f\u0924 \u0939\u0948\u0902<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917\u094b\u0902 \u090f\u0935\u0902 \u0938\u0942\u0915\u094d\u0937\u094d\u092e \u0924\u0930\u0902\u0917\u094b\u0902<\/span>
(B) \u0938\u0942\u0915\u094d\u0937\u094d\u092e \u0924\u0930\u0902\u0917\u094b\u0902 \u090f\u0935\u0902 \u0926\u0943\u0936\u094d\u092f \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092c\u0940\u091a<\/span><\/span> \u2713<\/span><\/b>
(C) \u0926\u0943\u0936\u094d\u092f \u092a\u094d\u0930\u0915\u093e\u0936 \u090f\u0935\u0902 \u092a\u0930\u093e\u092c\u0948\u0917\u0928\u0940 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u092c\u0940\u091a<\/span>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

12. \u0935\u093f\u0927\u0942\u0924 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u090a\u0930\u094d\u091c\u093e \u0918\u0928\u0924\u094d\u0935<\/span> u \u0939\u094b \u0924\u094b<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) u<\/i> <\/span>\u03bc<\/span> E<\/i>2<\/sup><\/span> \u2713<\/span><\/b>
(B) u<\/i> <\/span>\u03bc<\/span> E<\/i>
(C) u<\/i> <\/span>\u03bc<\/span> B<\/i>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/p>\n

13. \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917 \u0915\u094c\u0928-\u0938\u093e \u0917\u0941\u0923 \u092a\u094d\u0930\u0926\u0930\u094d\u0936\u093f\u0924 \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u0940 \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0928<\/span>
(B) \u0927\u094d\u0930\u0941\u0935\u0923<\/span>
(C) \u0935\u093f\u0935\u0930\u094d\u0924\u0928<\/span>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span> \u2713<\/span><\/b><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

14. \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917 \u0939\u094b\u0924\u093e \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0905\u0928\u0941\u0926\u0948\u0930\u094d\u0918\u094d\u092f<\/span>
(B) \u0905\u0928\u0941\u092a\u094d\u0930\u0938\u094d\u0925<\/span><\/span> \u2713<\/span><\/b>
(C) \u092a\u094d\u0930\u0917\u093e\u092e\u0940 \u0924\u0930\u0902\u0917<\/span>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

15. \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917 \u0915\u093e \u0938\u0902\u091a\u0930\u0923<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0935\u093f\u0927\u0941\u0924\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0932\u092e\u094d\u092c\u0935\u0924\u094d<\/span>
(B) \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0932\u092e\u094d\u092c\u0935\u0924\u094d<\/span>
(C) \u0926\u094b\u0928\u094b\u0902 \u0915\u0947 \u0932\u092e\u094d\u092c\u0935\u0924\u094d \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/span> \u2713<\/span><\/b>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

16. \u0935\u093f\u0927\u0941\u0924 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917 \u092e\u0947\u0902 \u0935\u0948\u0926\u094d\u092f\u0941\u0924 \u090a\u0930\u094d\u091c\u093e<\/span> <\/span><\/b>\u03bd<\/span><\/b>E \u0924\u0925\u093e \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u090a\u0930\u094d\u091c\u093e<\/span> uB \u0939\u094b\u0902 \u0924\u094b<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) uE<\/i> < uB<\/sub><\/i>
(B) uE<\/i> = uB<\/sub><\/i><\/span> \u2713<\/span><\/b>
(C) uE<\/i> > uB<\/sub><\/i>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

17. \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930(<\/span>B) \u0924\u0925\u093e \u0935\u093f\u0927\u0941\u0924 \u0915\u094d\u0937\u0947\u0924\u094d\u0930<\/span> E \u0915\u0947 \u0905\u0928\u0941\u092a\u093e\u0924 (<\/span>B\/E) \u0915\u093e \u092e\u093e\u0924\u094d\u0930\u0915 \u0939\u094b\u0924\u093e \u0939\u0948<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) ms-1<\/sup>
(B) sm-1<\/sup><\/span> \u2713<\/span><\/b>
(C) ms
(D) ms-2<\/sup><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

18. \u0932\u093e\u0932 \u0930\u0902\u0917 \u0915\u0940 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u092a\u0930\u093e\u0938 (\u092e\u0940\u0966 \u092e\u0947\u0902) \u0939\u094b\u0924\u093e \u0939\u0948 :<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) 6.2 x 10-7<\/sup> \u2013 7.5 x 10-7<\/sup><\/span> \u2713<\/span><\/b>
(B) 5.9 x 10-7<\/sup> \u2013 6.2 x 10-7<\/sup>
(C) 4 x 10-7<\/sup>-4.5 x 10-7<\/sup>
(D) 5 x 10-7<\/sup> \u2013 5.7 x 10-7<\/sup><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

19. \u0939\u0930\u093e \u0930\u0902\u0917 \u0915\u0947 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u092a\u0930\u093e\u0938 ( \u092e\u0940\u091f\u0930 \u092e\u0947\u0902 ) \u0939\u094b\u0924\u093e \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) 4 x 10-7<\/sup>_ 4.5 x 10-7<\/sup>
(B) 4.5 x 10-7-5<\/sup> x 10-7<\/sup>
(C) 5 x 10-7<\/sup> \u2013 5.7 x 10-7<\/sup><\/span> \u2713<\/span><\/b>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

20. \u0935\u093f\u0927\u0941\u0924 \u091a\u0941\u092e\u094d\u092c\u0915\u0924\u094d\u0935 \u0915\u0947 \u0928\u093f\u092f\u092e\u093e\u0928\u0941\u0938\u093e\u0930 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0928\u093f\u0930\u094d\u0935\u093e\u0924\u094d \u092e\u0947\u0902 \u091a\u093e\u0932 \u0938\u092d\u0940 \u091c\u0921\u093c\u0924\u094d\u0935\u0940\u092f \u0928\u093f\u0930\u094d\u0926\u0947\u0936\u0924\u0902\u0924\u094d\u0930\u094b\u0902 \u092e\u0947\u0902 \u0939\u094b\u0917\u0940<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0938\u092e\u093e\u0928<\/span><\/span> \u2713<\/span><\/b>
(B) \u0905\u0932\u0917-\u0905\u0932\u0917<\/span>
(C) \u0905\u0928\u093f\u0936\u094d\u091a\u093f\u0924<\/span>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

21. \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0927\u093e\u0930\u093e \u0915\u093e \u092e\u093e\u0924\u094d\u0930\u0915 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) A<\/i><\/span> \u2713<\/span><\/b>
(B) Am<\/i>
(C) OmA<\/i>
(D) J<\/i><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

22. \u090f\u0915\u094d\u0938-\u0915\u093f\u0930\u0923 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u092a\u0930\u093e\u0938 \u0915\u094c\u0928 \u0938\u0939\u0940 \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) 3 x 1021<\/sup>-3 x 1018<\/sup>
(B) 3 x 1018<\/sup> \u2013 3 x 1016<\/sup><\/span> \u2713<\/span><\/b>
(C) 3 x 108<\/sup> \u2013 3 x 1012<\/sup>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

23. \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u092a\u0930\u093e\u0938 \u0939\u0948 :<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) 3 x 1016<\/sup> \u2013 7.5 x 1014<\/sup>
(B) 7.5 x 1014<\/sup> \u2013 3.8 x 1014<\/sup>
(C) 3 x 108<\/sup> \u2013 3 x 1018<\/sup><\/span> \u2713<\/span><\/b>
(D) 3 x 104<\/sup> \u2013 3 x 102<\/sup><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/p>\n

24. \u0910\u0938\u0940 \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917\u0947\u0902 \u091c\u093f\u0928\u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u091f\u0947\u0932\u0940\u0935\u093f\u091c\u0928 \u0938\u093f\u0917\u094d\u0928\u0932 \u0938\u0947 \u091c\u094d\u092f\u093e\u0926\u093e \u0939\u094b\u0924\u0940 \u0939\u0948 \u0915\u0939\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948-<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u092e\u093e\u0907\u0915\u094d\u0930\u094b\u0935\u0947\u0935<\/span><\/span> \u2713<\/span><\/b>
(B) x-rays
(C) <\/span>\u03b3<\/span>-rays
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

25. \u092c\u0939\u0941\u092e\u0941\u0932\u094d\u092f \u0928\u0917\u094b\u0902 (\u092a\u0924\u094d\u0925\u0930\u094b\u0902) \u0915\u0940 \u092a\u0939\u091a\u093e\u0928 \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u0939\u093e\u092f\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0905\u0932\u094d\u091f\u094d\u0930\u093e\u092d\u093e\u092f\u0932\u0947\u091f \u0915\u093f\u0930\u0923<\/span>
(B) \u0905\u0935\u0930\u0915\u094d\u0924 \u0915\u093f\u0930\u0923\u0947\u0902<\/span>
(C) X-rays<\/span> \u2713<\/span><\/b>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

26. \u0917\u093e\u092e\u093e-\u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u092a\u0930\u093e\u0938 \u0939\u0930\u094d\u091f\u094d\u091c \u092e\u0947\u0902 \u0939\u0948 :<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) 3 x 1021<\/sup>-3 x 1018<\/sup><\/span> \u2713<\/span><\/b>
(B) 3 x 108<\/sup> \u2013 3 x 104<\/sup>
(C) 3.8 x 104<\/sup> -3 x 1011<\/sup>
(D) 3 x 1016<\/sup> \u2013 7.5 x 1014<\/sup><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

27. \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u094b\u0902 \u0915\u0940 \u0909\u0924\u094d\u092a\u0924\u094d\u0924\u093f \u0907\u0928\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u090f\u0915 \u0924\u094d\u0935\u0930\u093f\u0924 \u0906\u0935\u0947\u0936<\/span><\/span> \u2713<\/span><\/b>
(B) \u090f\u0915 \u0938\u094d\u0925\u093f\u0930 \u0906\u0935\u0947\u0936<\/span>
(C) \u0905\u0928\u093e\u0935\u0947\u0936\u093f\u0924 \u0906\u0935\u0947\u0936<\/span>
(D) \u0917\u0924\u093f\u0936\u0940\u0932 \u0906\u0935\u0947\u0936<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

28. 1\/2 <\/span><\/b>\u2208<\/span><\/b>0<\/span><\/sub><\/b>E2<\/sup> \u0915\u0947 \u0935\u093f\u092e\u0940\u092f \u0938\u0942\u0924\u094d\u0930 \u0915\u0947 \u0938\u092e\u0924\u0941\u0932\u094d\u092f \u0935\u093f\u092e\u093e \u0915\u0940 \u0930\u093e\u0936\u093f \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) B2<\/sup> \/ 2<\/span>\u03bc<\/span>0<\/span><\/sub> \u2713<\/span><\/b>
(B) 1 \/ 2 B2<\/sup><\/span>\u03bc<\/span>0<\/span><\/sub>
(C) <\/span>\u03bc<\/span>2<\/span><\/sup>\u0966<\/span><\/sub> \/ 2B
(D) 1\/2 B<\/span>\u03bc<\/span>2<\/span><\/sup>0<\/span><\/sub><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

29. \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938 \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917 \u0938\u094d\u092a\u0947\u0915\u094d\u091f\u094d\u0930\u092e \u0915\u093e \u0938\u092c\u0938\u0947 \u0932\u0918\u0941 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0939\u094b\u0924\u093e \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0924\u0930\u0902\u0917<\/span>
(B) \u092a\u0930\u093e\u092c\u0948\u0902\u0917\u0928\u0940<\/span>
(C) x-\u0915\u093f\u0930\u0923<\/span>
(D) <\/span>\u03b3<\/span>–\u0915\u093f\u0930\u0923\u0947\u0902<\/span><\/span> \u2713<\/span><\/b><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

30. \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u093e \u0905\u0935\u0930\u0915\u094d\u0924 \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) 10-4<\/sup> \u0938\u0947\u0966\u092e\u0940\u0966<\/span><\/span> \u2713<\/span><\/b>
(B) 10-2<\/sup> \u0938\u0947\u0966\u092e\u0940\u0966<\/span>
(C) 10-6<\/sup> \u0938\u0947\u0966\u092e\u0940\u0966<\/span>
(D) 10-7<\/sup> \u0938\u0947\u0966\u092e\u0940\u0966<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

31. \u092f\u0926\u093f<\/span> X-\u0915\u093f\u0930\u0923\u0947\u0902<\/span>, <\/span><\/b>\u03b3<\/span><\/b>–\u0915\u093f\u0930\u0923\u0947\u0902 \u0924\u0925\u093e \u092a\u0930\u093e\u092c\u0948\u0902\u0917\u0928\u0940 \u0915\u093f\u0930\u0923\u094b\u0902 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f\u092f\u093e\u0901 \u0915\u094d\u0930\u092e\u0936\u0903<\/span> a<\/i>,b<\/i> \u0924\u0925\u093e<\/span> c<\/i> \u0939\u094b\u0902 \u0924\u092c<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) a<\/i> < b<\/i>, b<\/i> < c<\/i><\/span> \u2713<\/span><\/b>
(B) a<\/i> > b<\/i>, b<\/i> > c<\/i>
(C) a<\/i> > b<\/i>, b<\/i> < c<\/i>
(D) a<\/i> < b<\/i>, b<\/i> > c<\/i><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

32. \u0915\u093f\u0938\u0940 \u0935\u093f\u0927\u0941\u0924 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0935\u093f\u0915\u093f\u0930\u094d\u0923 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e<\/span> 13.2 keV \u0939\u0948\u0964 \u092f\u0939 \u0935\u093f\u0915\u0940\u0930\u094d\u0923 \u091c\u093f\u0938 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0939\u0948<\/span>, \u0935\u0939 \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0926\u0943\u0936\u094d\u092f \u092a\u094d\u0930\u0915\u093e\u0936<\/span>
(B) X-\u0915\u093f\u0930\u0923<\/span><\/span> \u2713<\/span><\/b>
(C) \u092a\u0930\u093e\u092c\u0948\u0902\u0917\u0928\u0940<\/span>
(D) \u0905\u0935\u0930\u0915\u094d\u0924<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/p>\n

33. \u092e\u0948\u0915\u094d\u0938\u0935\u0947\u0932 \u0938\u092e\u0940\u0915\u0930\u0923 \u091a\u093e\u0930 \u0928\u093f\u092f\u092e\u094b\u0902 \u0915\u094b \u0928\u093f\u0930\u0942\u092a\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u0907\u0928\u092e\u0947\u0902 \u092e\u0948\u0915\u094d\u0938\u0935\u0947\u0932-\u090f\u092e\u094d\u092a\u093f\u092f\u0930 \u0928\u093f\u092f\u092e \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948<\/span> \u2013<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092b\u094d\u0932\u0915\u094d\u0938 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0940 \u0926\u0930 \u0915\u094b \u0915\u0941\u0932 \u0927\u093e\u0930\u093e \u0938\u0947<\/span><\/span> \u2713<\/span><\/b>
(B) \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092b\u094d\u0932\u0915\u094d\u0938 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0940 \u0926\u0930 \u0915\u094b \u0915\u0941\u0932 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0927\u093e\u0930\u093e \u0938\u0947<\/span>
(C) \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092b\u094d\u0932\u0915\u094d\u0938 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0940 \u0926\u0930 \u0915\u094b \u0927\u093e\u0930\u093e \u0938\u0947<\/span>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

34. \u0928\u093f\u0930\u094d\u0935\u093e\u0924 \u092e\u0947\u0902 \u0938\u0902\u091a\u0930\u093f\u0924 \u0935\u093f\u0927\u0941\u0924-\u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u094b \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0938\u092e\u0940\u0915\u0930\u0923\u094b\u0902 \u0938\u0947 \u0935\u094d\u092f\u0915\u094d\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span> E = E\u0966<\/span><\/sub> (sin<\/span><\/b>\u03c9<\/span><\/b>t \u2013 kx); B = B\u0966<\/span><\/sub> sin(<\/span><\/b>\u03c9<\/span><\/b>t \u2013 kx), \u0924\u092c<\/span><\/span><\/b><\/o:p><\/span><\/p>\n

(A) E\u0966<\/span><\/sub><\/span>\u03c9<\/span> = B\u0966<\/span><\/sub>k
(B) E\u0966<\/span><\/sub>B\u0966<\/span><\/sub> = <\/span>\u03c9<\/span>k
(C) E\u0966<\/span><\/sub>k = B\u0966<\/span><\/sub><\/span>\u03c9<\/span> \u2713<\/span><\/b>
(D) \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/o:p><\/span><\/p>\n

 <\/span><\/o:p><\/span><\/b><\/p>\n

35. \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928 \u0917\u0932\u0924 \u0915\u0925\u0928 \u0939\u0948<\/span> ?<\/span><\/b><\/o:p><\/span><\/p>\n

(A) \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u0947\u0902 \u0905\u0928\u0941\u092a\u094d\u0930\u0938\u094d\u0925 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902<\/span>
(B) \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u0947\u0902 \u0928\u093f\u0930\u094d\u0935\u093e\u0924\u094d \u092e\u0947\u0902 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u0935\u0947\u0917 \u0938\u0947 \u091a\u0932\u0924\u0940 \u0939\u0948\u0902<\/span>
(C) \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u094b\u0902 \u0915\u0947 \u0935\u0947\u0917 \u0938\u092d\u0940 \u092e\u093e\u0927\u094d\u092f\u092e\u094b\u0902 \u092e\u0947\u0902 \u0938\u092e\u093e\u0928 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span><\/span> \u2713<\/span><\/b>
(D) \u0935\u093f\u0927\u0941\u0924\u094d-\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0924\u0930\u0902\u0917\u0947\u0902 \u0924\u094d\u0935\u0930\u093f\u0924 \u0906\u0935\u0947\u0936 \u0938\u0947 \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

1. \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u093e \u0924\u0930\u0902\u0917\u0926\u0948\u0930\u094d\u0918\u094d\u092f \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u0939\u0948: (A) X-\u0915\u093f\u0930\u0923\u0947\u0902(B) Y-\u0915\u093f\u0930\u0923\u0947\u0902 \u2713(C) \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0924\u0930\u0902\u0917(D) \u0930\u0947\u0921\u093f\u092f\u094b \u0924\u0930\u0902\u0917   2. \u092e\u093e\u0907\u0915\u094d\u0930\u094b \u0924\u0930\u0902\u0917 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u092a\u0930\u093e\u0938 \u0939\u0948 : (A)<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[],"class_list":["post-377","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\/377","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=377"}],"version-history":[{"count":3,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/377\/revisions"}],"predecessor-version":[{"id":1812,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/377\/revisions\/1812"}],"wp:attachment":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}