A 4 8 cm B 3 4 A 2 cm high object is placed at a distance of

Last updated: 6/8/2023

A 4 8 cm B 3 4 A 2 cm high object is placed at a distance of 20 cm from a concave mirror If the imag formed by the mirror is inverted and height is 4 cm then the focal length of the mirro would be A 12 3 cm B 13 3 cm C 14 5 cm D 5 2 cm C 1