The mass defect per nucleon is called

(a) Binding energy             (b) Packing fraction
(c) Ionisation energy          (d) Excitation energy

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Nuclear forces are

(a) Short ranged attractive and charge independent
(b) Short ranged attractive and charge dependent
(c) Long ranged repulsive and charge independent
(d) Long ranged repulsive and charge dependent

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Antiparticle of electron is
(a) n10               (b) H11
(c) Positron        (d) Neutrino

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The binding energy per nucleon is maximum in the case of

(a) He42                  (b) Fe2656
(c) Ba56141               (d) U92235

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Nuclear binding energy
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Isotopes are atoms having 
(a) Same number of protons but different number of neutrons
(b) Same number of neutrons but different number of protons
(c) Same number of protons and neutrons
(d) None of the above

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The mass of an α-particle is 
(a) Less than the sum of masses of two protons and two neutrons
(b) Equal to mass of four protons
(c) Equal to mass of four neutrons .
(d) Equal to sum of masses of two protons and two neutrons

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Atomic number of a nucleus is Z and atomic mass is M. The number of neutron is

(a) M-Z           (b) M
(c) Z               (d) M+Z 

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The α-particle is the nucleus of an atom of

(a) Neon             (b) Hydrogen
(c) Helium           (d) Deuterium

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The force acting between proton and proton inside the nucleus is 
(a) Coulombic              (b) Nuclear
(c) Both                       (d) None of these

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For a nucleus to be stable, the correct relation between neutron number N and Proton number Z is

(a) N > Z             (b) N = Z 
(c) N < Z             (d) NZ

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