Consider the stituation shown in figure. The elevator is going up with an acceleration of 2.00 ms^-2 and the focal length of the mirror is 12.0 cm. All the surfaces are smooth and the pulley is light. The mass-pulley system is released from rest (with respect to the elevator) at t=0 when the distance of B from the mirror is 42.0 cm. Find the distance between the image of the block B and the mirror at t=0.200 s. Take `g=10 ms^-2`

Answer

C