BIOLOGICAL APPLICATION Because the index of refraction of

Chapter , Problem 72

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BIOLOGICAL APPLICATION Because the index of refraction of the lens of the eye is not very different from that of the surrounding material, most of the refraction takes place at the cornea, where the index changes abruptly from 1.00 (air) to approximately 1.38. (a) Modeling the cornea, aqueous humor, lens and vitreous humor as a transparent homogeneous solid sphere that has an index of refraction of 1.38, calculate the spheres radius if it focuses parallel light on the retina a distance away. (b) Do you expect your result to be larger or smaller than the actual radius of the cornea? Explain your answer.

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