MHT CET 2026 Physics question

Choose the correct statement from the following. Brewster's angle for a transparent medium is

(A)different for light of different coloursCorrect
(B)same for lights of different colours
(C)independent of refractive index of the medium
(D)different for lights of same colour

Answer: (A)

Solution

Brewster's law gives the polarising angle through , where is the refractive index of the medium. The refractive index depends on wavelength (dispersion): for a given transparent medium is different for different colours, so

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Question ID VK-097681