A convex lens is placed on an optical bench and is moved till it gives a real image of an
Channel: Doubtnut
Date: 30/08/2020

A convex lens is placed on an optical bench and is moved till it gives a real image of an object at a minimum distance of 80 cm from the latter. Find the focal length of the lens. If the object is placed at a distance of 15 cm from the lens, find the position of the image.