A convex lens of focal length 40 cm is held co axially 12 cm

Last updated: 6/11/2023

A convex lens of focal length 40 cm is held co axially 12 cm above a mirror of focal length 18 cm An object held x cm above the lens gives rise to an image coincident with it Then x is equal to 10 a 12 cm X 0 0 1O 15 cm c 18 cm d 30 cm 12 A body of mass 3 kg is under a constant force which causes 0