1. Tardigrade
  2. Question
  3. Physics
  4. Assertion (A) Forces acting between proton-proton (fp p), proton-neutron (fp n) and neutron-neutron (fn n) are such that fp p < fp n=fn n Reason (R) Electrostatic force of repulsion between two protons reduces net nuclear forces between them.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Assertion $(A)$ Forces acting between proton-proton $\left(f_{p p}\right)$, proton-neutron $\left(f_{p n}\right)$ and neutron-neutron $\left(f_{n n}\right)$ are such that $f_{p p} < f_{p n}=f_{n n}$
Reason $(R)$ Electrostatic force of repulsion between two protons reduces net nuclear forces between them.

AIIMSAIIMS 2015

Solution:

The net force between two nucleons is equal to the algebraic sum of the nuclear and electrostatic forces acting between them. Between proton-neutron and neutron-neutron, only the nuclear force of attraction act. But between proton-proton, apart from the nuclear force, electrostatic force of repulsion also acts. This tends to reduce the net force between the two protons.