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NEET PhysicsClass 12Refraction by a lens: lensmaker's formulaMediumSingle correct

Question 5 of 9

A thin biconvex lens of glass (refractive index 1.50) has radii of curvature 20 cm and 30 cm for its two faces. Its focal length in air is 24 cm. The lens is completely immersed in a transparent liquid of refractive index 1.25. What is its focal length in the liquid?

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