Question

Assertion : Work done in moving a body over a closed loop is zero for every force in nature. 

Reason : Work done does not depend on nature of force.

(a) If both assertion and reason and the reason is the correct explanation of the Assertion. 

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. 

(c) If the assertion is true but reason is false. 

(d) If the assertion and reason both are false. 

Answer 1

Correct option: (d)

Explanation:

Workdone depends on nature of force. It is zero for conservative forces and nonzero for nonconservative forces. Hence workdone in moving body over loop depends on nature of force and not always zero.