Question

Assertion :Nuclear forces are called short range forces. Reason: Nuclear forces operate over very small distance i.e., ${10}^{-15}$ m or 1 fermi.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Strong nuclear forces can act only over a range of zero meters to ${10}^{(}-15)$ meters, which is almost the size of an atom. So, these forces exist only within the atom. That is why they are known as short-range forces.

So, both assertion and reason are correct and the reason is the correct explanation for the assertion.

The answer is option $A$.