Question

Between the proton and neutron in a nucleus:

• A. nuclear force is greater than gravitational force
• B. gravitational force is greater than nuclear force
• C. electromagnetic force is lesser than gravitational force
• D. nuclear force is greater than electromagnetic force

Answer 1

Answer: (A)

- In a nucleus, protons and neutrons are bound to one another due to nuclear forces. If the distance between nucleons is of the order of $10^{-15}cm$, then nuclear force is much greater than gravitational and electromagnetic forces. Nuclear forces are primarily the forces of attraction and are responsible in binding of nucleons in a nucleus.