Consider a right-triangular prism of silica flint glass, as shown below. The glass is surrounded by air on all sides. The index of refraction for red light in this kind of glass is 1.62; for violet light the index of refraction is 1.66. If red light is incident on the left side of the prism at 1 = 60 degrees, what is the angle of refraction, 4, for the red light as it emerges from the glass into the air