(A) : Work done by friction over a closed path is not zero and no potential energy can be assocciated with friction.(R ) : Potential energy is defined only for conservative force.

(A) : Work done by friction over a closed path is not zero and no pote

1.	(A) : Work done by friction over a closed path is not zero and no potential energy can be assocciated with friction.(R ) : Potential energy is defined only for conservative force.
Answer» Both (A) and (R ) are true and (R ) is the correct EXPLANATION of (A) Both (A) and (R ) are true and (R ) is not the correct explanation of (A) (A) is true but (R ) is FALSE (A) is false and (R ) is false ANSWER :A