Question

For a beam of light in air (n = 1) reflecting off glass (n = 1.5), what is Brewster's angle to the nearest degree?

Answer 1

Answer: 56°

Explanation:

Brewster's angle refers to the angle at the point where light of a certain polarization passes through a transparent dielectric surface and is transmitted perfectly such that no reflection is made.

The formula is;

$= Tan^{-1} (\frac{n_{2} }{n_{1}} )$

$= Tan^{-1} (\frac{1.5 }{1} )$

= 56.30993247

= 56°