Question:
A convex lens made of glass of refractive index 1 5 has
Last updated: 6/12/2023
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A convex lens made of glass of refractive index 1 5 has focal length 10 cm in air It is taken inside a transparent liquid of refractive index 1 2 Find its focal length in the liquid 40 cm 30 cm 20 cm 10 cm