Unpolarised light of intensity `I_0` is incident on surface of a block of glass at Brewster's angle. In that case which one of the following startements is true?

Options

A. Transmitted light is partially polarised with intensity `I_0//2.`
B. Transmitted light is completely polarised with intensity less than `I_0//2`.
C. Reflected light is completely polarised with intensity less than `I_0//2`.
D. Reflected light is partially polarised with intensity `I_0//2.`

Answer

C

Explanation

Reflected light is completely polarised, when light is incident at Brewster.s angle. Intensity of reflected light is less than `I_0//2` because some loss of energy is also associated.