Question

The critical angle for total internal reflection for a substance is 41.0 degree. What is the polarizing angle for this substance?

Answer 1

The critical angle for light attempting to pass from a medium with refractive index n1 into a material with refractive index n2, with n1>n2, is sin^-1(n2/n1).

Here we have 41* = sin^-1(n2/n1), or n2/n1 = sin41*

Now, the brewster angle is given by B = tan^-1(n2/n1), so here we have the Brewster angle is
B = tan^-1(sin41) = 33.27*