Question: A converging glass lens with an index of refraction of

A converging glass lens with an index of refraction of 1.62 has a focal length of 30 cm in air.
(a) When the lens is immersed in water, the focal length of the lens will (1) increase, (2) remain the same, (3) decrease. Explain.
(b) What is the focal length when the lens is submerged in water?

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  • CreatedAugust 29, 2015
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