Question

When unpolarized light beam is incident from air onto glass $(n=1.5)$ at the polarizing angle,

• A. Reflected beam is polarized $100$ percent.
• B. Reflected and refracted beams are partially polarized.
• C. The reason for (a) is that almost all the light is reflected.
• D. All of the above.

Answer 1

Answer: (A)

Reflected beam is polarized $100$ percent.

When unpolarized light is incident on a medium at polarizing angle (also called Brewster's angle), the light that is reflected from the surface is perfectly polarized.