Outside a nucleus 
(a) Neutron is stable
(b) Proton and neutron both are stable
(c) Neutron is unstable
(d) Neither neutron nor proton is stable

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Order of magnitude of density of uranium nucleus is (mP=1.67×10-27 kg)
(a) 1020 kg/m3           (b) 1017 kg/m3
(c) 1014 kg/m3           (d) 1011 kg/m3

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Radius of He24 nucleus is 3 Fermi. The radius of Pb82206 nucleus will be 
(a) 5 Fermi                 (b) 6 Fermi
(c) 11.16 Fermi           (d) 8 Fermi

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Nucleus of an atom whose atomic mass is 24 consists of

(a) 11 electrons, 11 protons and 13 neutrons
(b) 11 electrons, 13 protons and 11 neutrons
(c) 11 protons and 13 neutrons
(d) 11 protons and 13 electrons

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The mass of a neutron is the same as that of 
(a) A proton                 (b) A meson
(c) An epsilon               (d) An electron

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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

Concept Questions :-

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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