Tiêu đề Physical Science_.pdf ✅

Paper – II Physical Sciences Subject Code : Roll No. : Roll No. (in words) : _____________________________________________________ _____________________________________________________ OMR Sheet No. : Name and Signature of Invigilator/s Signature : _________________________________ Name : _________________________________ Time : 2 Hours Maximum Marks : 200 Number of Pages in this Booklet : 16 Number of Questions in this Booklet : 100Test Bookle t N o. (Figures as per admission card) Booklet Code A Instructions for the Candidates 1. Write your roll number in the space provided on the top of this page. 2. This paper consists of hundred (100) multiple-choice type of questions. 3. At the commencement of examination, the test booklet will be given to you. In the first 5 minutes, you are requested to open the booklet and compulsorily examine it as below : (i) To have access to the Test Booklet, tear off the paper seal on the edge of the cover page. Do not accept a booklet without sticker seal or open booklet. (ii) Tally the number of pages and number of questions in the booklet with the information printed on the cover page. Faulty booklets due to pages/questions missing or duplicate or not in serial order or any other discrepancy should be got replaced immediately by a correct booklet from the invigilator within the period of 5 minutes. Afterwards, neither the Test Booklet will be replaced nor any extra time will be given. (iii) After the verification is over, the Test Booklet Number should be entered in the OMR Sheet and the OMR Sheet Number should be entered on this Test Booklet. 4. Each item has four alternative responses marked (A), (B), (C) and (D). You have to darken the circle as indicated below on the correct response against each item. Example : A B C D where (C) is the correct response. 5. Your responses to the questions are to be indicated in the OMR Sheet kept inside this Booklet. If you mark at any place other than in the circles, the OMR Sheet will not be evaluated. 6. Read the instructions given in OMR Sheet carefully. Fill the Booklet Code of Paper – II in OMR Sheet Compulsorily. 7. Rough Work is to be done in the end of this booklet. 8. If you write your name or put any mark on any part of the OMR Answer Sheet, except for the space provided for the relevant entries, which may disclose your identity, you will render yourself liable to disqualification. 9. You have to return the OMR Answer Sheet to the invigilators at the end of the examination compulsorily and must not carry it with you outside the Examination Hall. 10. You can take away test booklet and carbon copy of OMR Answer Sheet after the examination. 11. Use only Blue/Black Ball point pen. 12. Use of any calculator, electronic gadgets or log table, etc. is prohibited. 13. There is no negative mark for incorrect answer. 0 5 A 05 – A 1 P.T.O. HHHHHHHH H H HH HHHHHHH H H A fafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafaffafafafafafafafafafa afafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafa fafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafaffafafafafafafafafafa fafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafafaf


Total Number of Pages : 16 05 – A 4 Paper II 15. The specific heat of the three-dimensional Photon gas varies with the temperature as (A) CV T (B) CV T (C) CV T (D) CV T 16. Identify the type of interaction : K p K K − − + + → Ω + + 0 (A) Weak interaction (B) Strong interaction (C) Electromagnetic interaction (D) Not an allowed interaction 17. In a typical beta-decay, what is the energy of neutrino ? (A) 100 KeV (B) 1 MeV (C) 10 MeV (D) 100 MeV 18. Hyperfine structure of spectral lines is due to couplings of (A) Electron spin S and orbital angular momentum L (B) Total angular momentum J and nuclear spin I (C) No such Hyperfine only fine structure exists (D) Direct Electron spin S – S couplings 19. The binding energy per nucleon varies from 56Fe to 238U as (A) Decreasing (B) Increasing (C) Unchanged (D) Fluctuates 20. What is the approximate order of magnitude for the ratio of the energy released when 1 gm of Uranium undergoes fission to the energy released when 1 gm of TNT is exploded ? (A) 102 (B) 106 (C) 1010 (D) 1012 Direction (Q.No. 21 – 25) : Based on the information given below, answer questions no. 21 to 25. The electric field part of an electromagnetic wave in an medium is represented by E N C rad m t rad S y = ×       −       − 2 5 2 10 10 6 2 . cos π π. where the x component and the z component of electric field are zero. 21. The magnetic field is moving along (A) +ve y direction (B) +ve z  direction (C) –ve y direction (D) –ve z  direction