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JEE Advanced 2016 Paper 2

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Question : 1

Total: 54

The electrostatic energy of Z protons uniformly distributed through out a spherical nucleus of radius R is given by E=

The measured masses of neutron 11H,715N and 815O are 1.008665 u,1.007825u,15.000109 u and 15.003065 u respectively .Given that the radii of both the 715N and 815O nuclei are ame,1u=931.5 MeV/c2 (c is the speed of light) and

=1.44MeV fm. Assuming that the difference between the binding energies of 715N and 815O is purely due to the electrostatic energy ,the radius of eithr of the nuclei is (1fm=10−15m)

2.85 fm
3.03 fm
3.42 fm
3.80 fm

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