question_answer

Unpolarized light of intensity in is incident on surface of a block of glass at Brewster's angle. In that case, which one of the following statements is true?      [JEE MAIN 11-04-2015]

A) transmitted light is partially polarized with intensity \[{{I}_{0}}/2.\]

B) transmitted light is completely polarized with intensity less than \[{{I}_{0}}/2.\]

C) reflected light is completely polarized with intensity less than \[{{I}_{0}}/2.\]

D) reflected light is partially polarized with intensity \[{{I}_{0}}/2.\]

Correct Answer: C

Solution :

[c] At Brewster’s angle

The reflected light is completely polarized, where as refracted light has both components to electric field.

Thus, the reflected ray will have lesser intensity compared to refracted ray.