Question

For an elliptically polarized wave incident on the interface of a dielectric at the Brewster angle, the reflected wave will be
1. elliptically polarized 
2. linearly polarized 
3. right circularly polarized 
4. left circularly polarized 

Answer 1

Correct Answer - Option 1 : elliptically polarized 

The Brewster law states the relationship between light waves and polarized light. The polarized light vanishes at this maximum angle.

Brewster angle is the angle when a wave is an incident on the surface of a perfect dielectric at which there is no reflected wave and the incident wave is parallelly polarised. 

For an elliptically polarized wave incident on the interface of a dielectric, the reflected wave will be elliptically polarized 

Brewster angle is given by:

\(\theta = {\tan ^{ - 1}}\sqrt {\frac{{{\epsilon_2}}}{{{\epsilon_1}}}}\)