An object and a screen are mounted on an optical bench and a

Last updated: 6/11/2023

An object and a screen are mounted on an optical bench and a converging lens is placed between them so that a sharp image is obtained on the screen The linear magnification of the image is 25 The lens is now moved 30 cm towards the screen and a sharp image is again formed on the screen Find the focal length of the lens A 1 2 cm C 14 6 cm B 14 3 cm D 14 9 cm