Ncert Exercises & Solutions

The deuteron is bound by nuclear forces just as H-atom is made up of p and e bound by electrostatic forces. If we consider the force between neutron and proton in deuteron as given in the form of a Coulomb potential but with an effective charge e':

$F = \frac{1}{4 {πε}_{0}} \cdot \frac{e'^{2}}{r}$

estimate the value of (e'/e) given that the binding energy of a deuteron is 2.2 MeV.