Which one of the following nuclear reactions is a source of energy in the sun 
(a) Be49+He24C612+n0-1
(b) He23+He23H24+H11+H11
(c) Ba56144+Kr5692U92235+n0-1
(d) Fe2656+Ca48112W74167+n0-1

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H11+H11+H12X+e10 energy. The emitted particle is [CPMT 1996]
(a) Neutron                 (b) Proton
(c) α particle               (d) Neutrino

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Which of these is a fusion reaction 
(a) H31+H21He42+n10
(b) U92238Pb82206+8He24+6β-10
(c) C712C612+β++γ
(d) None of these

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In a nuclear fission reaction 
(a) Two light nuclei combine to produce a heavier nucleus
(b) A light nucleus bombarded by thermal neutrons breaks up
(c) A heavy nucleus bombarded by thermal neutrons breaks up
(d) A heavy nucleus breaks up by itself

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Hydrogen bomb is based on which of the following phenomenon
(a) Nuclear fission             (b) Nuclear fusion
(c) Radioactive decay        (d) None of these

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The number of neutrons released when U23592 undergoes fission by absorbing n01 and Ba56144+Kr3689are formed, is 
(a) 0           (b) 1
(c) 2           (d) 3

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Which of the following particle has similar mass to electron

(a) Proton              (b) Neutron
(c) Positron            (d) Neutrino

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Neutrino is a particle, which is 
(a) Charged and has spin
(b) Charged and has no spin
(c) Charge less and has spin
(d) Charge less and has no spin

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To generate a power of 3.2 mega watt, the number of fissions of U235 per minute is
(Energy released per fission = 200MeV, 1eV=1.6×10-19 J 

(a) 6×1018         (b) 6×1017
(c) 1017              (d) 6×1016

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The average number of prompt neutrons produced per fission of U235 is 
(a) More than 5          (b) 3 to 5
(c) 2 to 3                   (d) 1 to 2

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