Question

Assertion: The work done during a round trip is always zero.
Reason: No force is required to move a body in its round trip

Answer 1

Both Assertion and Reason are incorrect.

In a round trip work done is zero only when the force is conservative in nature.

Force is always required to move a body in a conservative or non-conservative field.

Answer 2

Answer:

Assertion : Work done by orforce of friction in moving a body through any round trip is zero. <br> Reason : Because friction is a conservative force. (A) : Work done by or against force of friction in moving a body through any round trip is zero.