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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 18 - Refraction at Spherical Surfaces > A lens of refractive index n is put in a liquid of refractive index n’ . If focal length of lens in air is f, its focal length in liquid will be

A lens of refractive index n is put in a liquid of refractive index n’ . If focal length of lens in air is f, its focal length in liquid will be

A lens of refractive index n is put in a liquid of refractive index n' . If focal length of lens in air is f its focal length in liquid will be