Problem a contact lens is made of plastic with an index of, Ask an Expert

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Problem: A contact lens is made of plastic with an index of refraction of 1.60. The lens has an outer radius of curvature of +2.10 cm and an inner radius of curvature of +2.58 cm.

Part A- What is the focal length of the lens?

This is a physic problem, reply as soon as possible. Thanks.

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