Two nucleons are at a separation of `1 xx 10^-15 m`. The net force between them is `F_1`, if both are neutrons, `F_2` if both are protons and `F_3` if one is a proton and other is a neutron. In such a case.

Options

A. `F_1 gt F_2 gt F_3`
B. `F_1 lt F_3 lt F_2`
C. `F_1 = F_2 = F_3`
D. `F_3 gt F_2 gt F_1`

Answer

C

Explanation

Distance between the nucleons = 1 fermi `=10^(-15) m`
Nuclear forces do not depend upon the charge on the nucleus. Hence it is immaterial whether we consider (n, n) (p, p) or (n, p) . Hence `F_1 = F_2 = F_3` .