Question

Assertion : A body, whatever its motion is always at rest in a frame of reference which is fixed to the body itself.

Reason: The relative velocity of a body with respect to itself is zero.

(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.

(b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion

(c) Assertion is correct, reason is incorrect

(d) Assertion is incorrect, reason is correct.

Answer 1

Correct option (a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.

Explanation:

A body has no relative motion with respect to itself. Hence, if a frame of reference of body is fixed, then the body will be always at relative rest in this frame of reference.