Physics, asked by praful9744, 1 year ago

what happens to the focal length of a convex lens if it is immersed in water

Answers

Answered by AgarwalSahb

the focal length of mirrors does not depend on the external medium in which it is held. In case of lenses, refraction takes place. When a lens is immersed in water, the value of refractive index decreases. Hence its focal length increases.

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