NEET 2025 Physics question

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

(A)the reflected light will be completely polarised but the refracted light will be partially polarised.Correct
(B)the reflected light will be partially polarised.
(C)the refracted light will be completely polarised.
(D)both the reflected and refracted light will be completely polarised.

Answer: (A)

Solution

At Brewster's angle the reflected ray is completely plane polarised; the refracted ray is partially polarised.

Question ID VK-014344