On the bombardment of neutron with Boron. α-particle is emitted and product nuclei formed is
(a) C126          (b) Li63
(c) Li73           (d) Be94

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The average kinetic energy of the thermal neutrons is of the order of 
(a) 0.03 eV         (b) 3 eV 
(c) 3 KeV            (d) 3 MeV

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Which of the following isotopes is normally fissionable ?

(a) U23892              (b) Np23993
(c) U23592              (d) He42

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The process by which a heavy nucleus splits into light nuclei is known as 
(a) Fission            (b) α-decay
(c) Fusion             (d) Chain reaction

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The explosion of the atomic bomb takes place due to

(a) Nuclear fission           (b) Nuclear fusion
(c) Scattering                 (d) Thermionic emission

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In nuclear reaction He42+XAZYA+3z+2+A, A denotes 
(a) Electron            (b) Positron
(c) Proton               (d) Neutron

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Types of decay
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Energy generation in stars is mainly due to

(a) Chemical reactions               (b) Fission of heavy nuclei
(c) Fusion of light nuclei             (d) Fusion of heavy nuclei

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Fusion reaction is initiated with the help of 
(a) Low temperature         (b) High temperature
(c) Neutrons                     (d) Any particle

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When a Be94 atom is bombarded with α particles, one of the product of nuclear transmutation is C126. The other is 
(a) e0-1            (b) H11
(c) D21             (d) n10

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During the nuclear fusion reaction 
(a) A heavy nucleus breaks into two fragments by itself
(b) A light nucleus bombarded by thermal neutrons breaks up
(c) A heavy nucleus bombarded by thermal neutrons breaks up
(d) Two light nuclei combine to give a heavier nucleus and
possibly other products

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