Question

if critical angle for total internal reflection for a substance is 60° then the polarizing angle for this substance will be​

Answer 1

Given:

critical angle $\displaystyle i_c$ = 60°

To find:

polarizing angle θ =?

Explanation:

Brewster's angle is an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection.

It is also called a polarizing angle.

This polarizing angle is calculated by a formula

$\displaystyle tan\theta = \frac{1}{sin\ i_c}$

        = $\displaystyle \frac{1}{sin60}$

tanθ  = 1.1547

⇒ θ = 56.70°

The polarizing angle is 56.70°.