NEET 2025 Physics Polarization MCQ Question
An unpolarized light beam travelling in air is incident on a medium of refractive index 1.73 at Brewster’s angle. Then-
reflected light is completely polarized and the angle of reflection is close to 60°
reflected light is partially polarized and the angle of reflection is close to 30°
both reflected and transmitted light are perfectly polarized with angles of reflection and refraction close to 60° and 30°, respectively.
transmitted light is completely polarized with angle of refraction close to 30°
Correct Answer
Detailed Explanation
At Brewster's angle, the reflected light is completely polarized. The angle of reflection is equal to the Brewster's angle, which is given by tan(θ) = n, where n is the refractive index. For n = 1.73, θ is approximately 60°.
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