In Figure a box is somewhere at the left, on the central axis of the thin converging lens. The image Im of the box produced by the plane mirror is 4.00 cm "inside" the mirror. The lens-mirror separation is 10.0 cm, and the focal length of the lens is 2.00 cm.

(a) What is the distance between the box and the lens? Light reflected by the mirror travels back through the lens which produces a final image of the box?

(b) What is the distance between the lens and that final image?