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IIT JAM 2010

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Brijmohan
Banaras Hindu University (BHU), Varanasi
PhD Condensed matter Physics

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fiziks Forum for CSIR-UGC JRF/NET, GATE, IIT-JAM, GRE in PHYSICAL SCIENCES IIT-JAM-2010(PHYSICS) IMPORTAN NOTE FOR CANDIDTES Attempt ALL 25 questions. Questions 1-15(objective questions) carry six marks each and questions 1625(subjective questions) carry twenty one marks each. Q.1 A matrix is given by M 1 i 2 1 1 . The eigenvalues of the M are i (a) real and positive (b) purely imaginary with modulus 1 (c) complex with modulus 1 (d) real and negative Q.2 The value of at which the first-order peak in X-ray ( =1.53 ) diffraction corresponding to (111) plane of a simple cubic structure with the lattice constant, = 2.65 , is approximately (a) 15o (b) 30o (c) 45o (d) 60o Q.3 The magnetic field associated with the electric field vector E E0 sin kz t j is given by E (a) B 0 sin kz t i c E (b) B 0 sin kz t i c E (c) B 0 sin kz t j c E (d) B 0 sin kz t k c Q.4 Consider the following truth table A The logic expression for F is B C F 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 1 0 0 0 1 1 1 0 (a) AB + BC + CA (b) A B AC B C (c) CAB AB (d) C A B AB fiziks c/o Anand Institute of mathematics, 28-B/6 Jia Sarai Near IIT, Hauz Khas, New Delhi, PIN- 110016 (INDIA) Phone: 011-32718565, +91-9871145498 Website: http://www.physicsbyfiziks.com Email: fiziks.physics@gmail.com 1

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