Published by ams on Tue, 12/11/2012 - 12:24
Light travels from air into water with an angle of refraction (θr) of 21.2 °. What is the angle of incidence (θi) if the refractive index of air is 1 and the refractive index of water is 1.33.
The angle of incidence is: ° (Give your answer to the nearest 10th of a degree)
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