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A light source is embedded in a crystal with an unknown index of refraction. Light which originates inside the crystal and reaches the crystal-air interface with an angle of incidence greater than 30 degrees is totally internally reflected. What is the angle of refracted light when light is incident on the interface at exactly 30 degrees? Submit Answer Tries 0/10 What is the index of refraction of the crystal? Submit Answer Tries 0/10

4 3.5 index of refraction 15 1.5 1 300 350 400 450 500 550 600 650 700 wavelength (nm) Post Discussion Given the provided dispersion curve of a mystery material, what is the index of refraction of light of wavelength 460 nm? 2.625 Submit Answer Incorrect. Tries 1/10 Previous Tries Light of wavelength 460 nm traveling though water refracts in the mystery material with an angle of 20 degrees. What was the angle of incidence upon the surface from the water? (Remember the index of refraction of water is 1.33) 42.45 deg Submit Answer Incorrect. Tries 1/10 Previous Tries Send Feedback