Question

An unpolarised light beam strikes a glass surface at Brewster's angle. Then ______.

विकल्प

• both the reflected and refracted light will be completely polarised.

• the reflected light will be completely polarised but the refracted light will be partially polarised.

• the reflected light will be partially polarised.

• the refracted light will be completely polarised.

Answer 1

An unpolarised light beam strikes a glass surface at Brewster's angle. Then the reflected light will be completely polarised but the refracted light will be partially polarised.

Explanation:

At Brewster’s angle, the reflected light is entirely polarised perpendicular to the plane of incidence. This indicates that the electric field of the reflected light wave oscillates inside a single plane. However, the refracted light is not completely polarised.