Physics Practice Problems Refraction Of Light Practice Problems Solution: Light of wavelength 475nm in vacuum enters a plast...

Solution: Light of wavelength 475nm in vacuum enters a plastic as shown in Fig. 1. Measurements of the light in the plastic indicate that its wavelength there is 394 nm. At what direction does the light travel with respect to the normal in the plastic?

Problem

Light of wavelength 475nm in vacuum enters a plastic as shown in Fig. 1. Measurements of the light in the plastic indicate that its wavelength there is 394 nm. 

At what direction does the light travel with respect to the normal in the plastic?