JEE Main 2024 Physics question
When unpolarized light is incident at an angle of 60° on a transparent medium from air, the reflected ray is completely polarized. The angle of refraction in the medium is
Answer: (A)
Solution
At the polarising (Brewster) angle the reflected and refracted rays are perpendicular: i + r = 90°, so r = 90° − 60° = 30°.