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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 18 - Refraction at Spherical Surfaces > 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 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 an object and its real image formed by a lens is D. If the magnification is m the focal length of the lens is