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Pune University - Sem - IV : Nuclear Physics, April 2010

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Total No. of Questions : 7] P889 [Total No. of Pages : 3 [3722]-401 M. Sc. PHYSICS PHY UTN - 801 : Nuclear Physics (New Course) (2008 Pattern) (Sem. - IV) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates : 1) Question No. 1 is compulsory. Attempt any four questions from the remaining. 2) Draw neat diagrams wherever necessary. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables and pocket calculator is allowed. Q1) Attempt any four of the following : a) Evaluate the maximum energy shift that can be observed for a body whose quadropole moment is Q. [4] b) For a graphite a = 0.003 barn, Lm = 54 cm, o = 364 cm2 and for Uranium a = 698 barn and = 2.08. (Given p = 1 & = 1) Calculate thermal utilization factor, k and thermal diffusion length for the mixture. [4] c) Obtain selection rules for magnetic multipole radiations in case of gammadecay for electric and magnetic dipole, quadrople. [4] d) Compute the maximum energy of the Compton recoil electrons resulting from the absorption in Al of 2.19 MeV -ray. (rest mass of electron m0 = 9.1091 10 31 kg) e) Which of the following reactions are allowed and forbidden under the conservation of strangeness, conservation of baryon number and conservation of charge. [4] i) + + n k0 + + & ii) f) [4] + p 0 + 0 Calculate the total cross-section for n-p scattering at neutron energy 2MeV in lab system. (Given : at = 5.38F, as = 23.7F, rot = 1.7F and ros = 2.4F & M = 1.6748 10 27 kg, ! = 1.0549 10 34 Js) [4] P.T.O.

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Additional Info : M.Sc. PHYSICS, PHY UTN - 801 : Nuclear Physics (New Course) (2008 Pattern) (Semister - IV), Pune University
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