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