Question

a) Unpolarized light is sent through two polarizers. Its initial intensity is 35 W/m², and the polarizing axes are at angles θ₁ = 76° and θ₂ = 90°, both relative to a common y axis. After passing through both polarizers, what is the intensity of the light? Express your answer in W/m².

b) Consider three materials with parallel interfaces. The first has n = 1.04, and the second has n = 1.60. A ray of light in the first medium strikes the second medium at the Brewster angle, and the transmitted light is then incident at the Brewster angle again on the third medium. Find the index of refraction of the third material.

Answer 1