(A) : The coefficient of restitution for a perfectly elastic collision is equal to one.(R ) :In perfectly elastic collisio, kinetic energy before and after the collision remains conserved.

(A) : The coefficient of restitution for a perfectly elastic collision

1.	(A) : The coefficient of restitution for a perfectly elastic collision is equal to one.(R ) :In perfectly elastic collisio, kinetic energy before and after the collision remains conserved.
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 :B