The distance between an object and its real image formed by a lens is D. If the magnification is `m`, the focal length of the lens is

The distance between the object and real image formed by a lens is D . If the magnification is m , then the focal length of the lens is given by :

The distance between an object and its real image formed by a convex lens cannot be

The distance between the object and the real image formed by a convex lens is d. If the linear magnification is m, find the focal length of the lens in terms of d and m.

The minimum distance between an object and its real image formed by a convex lens is

The minimum distance between an object and its real image formed by a convex lens is

The minimum distance between an object and its real image formed by a convex lens is