Question

Two nucleons are at a separation of one Fermi. Protons have a charge of $+1.6\times {10}^{-19}$ C. The net nuclear force between them is $F_1$, if both are neutrons, $F_2$ if both are protons and $F_3$ if one is proton and the other is neutron. Then.

• A. $F_1=F_2>F_3$
• B. $F_1=F_2=F_3$
• C. $F_1<F_2<F_3$
• D. $F_1>F_2>F_3$

Answer 1

The correct option is B $F_1=F_2=F_3$

Mass of proton = Mass of neutron = $1.67\times {10}^{-27}Kg$

So, force between proton - proton, proton - neutron, neutron - neutron are equal.

So, $F_1=F_2=F_3$