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Physics · PYQ NEET UG 2025
हिन्दीAn unpolarized light beam travelling in air is incident on a medium of refractive index \( 1.73 \) at Brewster's angle. Then-
Correct answer · Option 1
reflected light is completely polarized and the angle of reflection is close to \( 60^{\circ} \)
Explanation
By Brewster's law, \( \tan i_p = \mu = 1.73 \approx \sqrt{3} \), so \( i_p = 60^{\circ} \). The angle of reflection equals \( i_p = 60^{\circ} \) and the angle of refraction is \( 90^{\circ} - 60^{\circ} = 30^{\circ} \).
