Question

A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm on principal axis
of lens and mirror. At what distance x from the lens should a convex mirror of focal length 60 cm, be placed
so that final image coincides with the object?
(A) 10 cm
(B) 40 cm
(C) 20 cm
(D) final image can never coincide with the object in the given conditions

Answer 1

Answer:

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