A convex lenses of focal length 40 cm is held coaxially 12

Last updated: 6/4/2023

A convex lenses of focal length 40 cm is held coaxially 12 cm above a concave mirror of focal length 18 cm An object held x cm above the lens gives rise to an image coincident with it The x is equal to O 2720 104 12 cm b 15 cm x cm 12 cm P 146 c 18 cm d 30 cm