650 nm light is incident on water (n=1.33) at an angle 42o from the normal.
a) What is the angle of refraction?
b) What is the wavelength of the light in the water? What color is this?
c) What is the speed of the light in the water?
d) What is the frequency of the light in the air? In the water?
The index of refraction for violet light in silica flint glass is 1.66 and that for red light is 1.62.
What is the angular dispersion of visible light passing through a prism of apex angle 60o if the
angle of incidence is 50o?
A beam of laser light enters a rectangular block of glass at an angle of 1  45o and emerges at
an angle of  2  76 o as shown in the figure below.
a. Determine the index of refraction for the laser light in the glass.
b. If the light ray enters the glass at a point L  50 cm from the bottom edge, how long
does it take the light to travel through the glass?
c. Now assume it was white light, not laser light, entering the block. If the violet light
emerges at an angle of 81o, what is the index of refraction for the violet light in the
glass?
What is the critical angle for the total internal reflection of a diamond-air interface (the index of
refraction of diamond is 2.419)?