Let Fpp, Fpn and Fnn denote the magnitudes of the net force by a proton on a proton, proton on a neutron and neutron on a neutron. Neglect gravitational force. When the separation is 1fm,

Question

Philoid · Accepted Answer

Nuclear forces are much stronger as compared to gravitational and electromagnetic forces.

As neutrons does not have any charge, thus the force between 2 neutron and between a proton and a neutron will be zero as

Also, the force between 2 protons is columbic in nature. This coulomb force is weaker as compared to the nuclear forces between proton-proton and neutron-proton. Therefore, option (d) is the correct option.

Option (a) is not correct as the force between proton-proton can’t be greater than those of neutron-neutron and proton-neutron.

Option (b) is not correct as the forces can’t be same because coulomb force and nuclear force are not equal in magnitude.

Option (c) also can’t be correct as because force between proton-neutron and neutron-neutron are all nuclear force.