Question

Natural light falls at the Brewster angle on the surface of glass. Using the Fresnel equations, find 

(a) the reflection coefficient; 

(b) the degree of polarization of refracted light.

Answer 1

(a) From Fresnel’s equations

(b) For the refracted light

at the Brewster’s angle. 

Thus the degree of polarization of the refracted light is

On putting p = 0.074 we get P = 0.080 .