(A) : Work done by or against force of friction in moving a body through any round trip is zero.(R ) : Friction is a conservative force.

(A) : Work done by or against force of friction in moving a body throu

1.	(A) : Work done by or against force of friction in moving a body through any round trip is zero.(R ) : Friction is a 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 :D