Thermal neutrons can cause fission in 
(a) U235           (b) U238
(c) Pu238         (d) Th232

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In the nuclear reaction C116B115+β++X, what does X stand for 
(a) An electron       (b) A proton
(c) A neutron         (d) A neutrino

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Types of decay
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When neutrons are bombarded on nucleus of U23592, the number of emitted neutrons will be 
(a) 1           (b) 2
(c) 3           (d) 4

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The energy released in a typical nuclear fusion reaction is approximately 
(a) 25 MeV           (b) 200 MeV
(c) 800 MeV         (d) 1050 MeV

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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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Mass-energy equivalent
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