Question

Assertion (A) : Nuclear forces are always attractive.
Reason (R) : The nuclear force between protons and neutrons in a nucleus is a weak force.

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

Hint:

The nuclear force turns from attractive to repulsive at a critical threshold distance of \(r_0 \approx 0.8\text{ fm}\). This structural property ensures that individual nucleons maintain a stable, finite volume instead of collapsing together.

Answer 1

The Correct Option is D