Question

Assume all angles to be exact.
Light passes from medium A into medium B at an angle of incidence of 42 ∘. The index of refraction of A is 1.30 times that of B.

Part A: What is the angle of refraction?

Part B: What is the ratio of the speed of light in B to the speed of light in A?

Part C: What is the ratio of the frequency of light in B to the frequency of light in A?

Part D: At what angle of incidence would the light be internally reflected?

Answer 1