College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 42

A ray of light is moving from a material having a high index of refraction into a material with a lower index of refraction. (a) Is the ray bent toward the normal or away from it (b) If the wavelength is 600 nm in the material with the high index of refraction, is it greater, smaller, or the same in the material with the lower index of refraction (c) How does the frequency change as the light moves between the two materials Does it increase, decrease, or remain the same