Question

A beam of light is allowed to fall on a Nicol Prism. The prism is rotated. If the light gets completely extinguished twice in one rotation, the nature of the light is __________

(a) Unpolarized

(b) Plane Polarized

(c) Circularly Polarized

(d) Elliptically Polarized

Answer 1

Correct choice is (b) Plane Polarized

Explanation: When a Nicol Prism is rotated, then there would be two stages when the plane polarized light would get completely blocked from passing through the prism, as the arrangement of molecules would be in such a direction that it eliminated the vibration.