Question

Assertion (A): Nuclear forces are dependent on charges present on nucleons

Reason (R) : $\pi$ mesons act as exchanging particles between nucleons and keep them bound in the nucleus
The correct answer is

• A. Both A and R are true, and R is the correct explanation of A
• B. Both A and R are true, and R is not the correct explanation of A
• C. A is true, but R is false
• D. A is false, but R is true

Answer 1

Answer: (D)

A is false, but R is true

Nuclear forces are forces which are independent of the charge present on the particles. They are very strong attractive forces which acts at a very small distance of the order of ${10}^{-14}m$ or lesser.
And for nucleons to remain bounded,$\pi$ mesons acts as exchanging particles between nucleons and this is a fact to be by hearted.