A convex lens makes a real image 4 cm long on a screen. When the lens is shifted to a new position
Channel: Doubtnut
Date: 30/08/2020

A convex lens makes a real image 4 cm long on a screen. When the lens is shifted to a new position without disturbing the object, we again get a real image on the screen which is 16 cm tall. The length of the object must be