From Brewster's law, the reflected and transmitted rays are perpendicular to each other.
Light travels in a medium with index n1 toward a boundary with another material of index n2 < n1.
(a) Which is larger, the critical angle or Brewster's angle?
A. Brewster's angle
B. The critical angle
(b) Does the answer depend on the values of n1 and n2 (other than assuming n2 < n1)?
(c) What can you say about the critical angle and Brewster's angle for light coming the other way (from the medium with index n2 toward the medium with n1)?
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