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Unpolarised light is incident from air on a plane surface of a material of refractive index ‘µ’. At a particular angle of incidence ‘i’, it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation ?

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$i = \tan^{- 1} (\frac{1}{μ})$

Reflected light is polarized with its electric vector perpendicular to the plane of incidence

$i = \sin^{- 1} (\frac{1}{μ})$

Reflected light is polarized with its electric vector parallel to the plane of incidence

answer is B.

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Detailed Solution

When angle of incidence is Brewster angle reflected light is completely and that time reflected and refracted rays are perpendicular to each other and contained only electric vector perpendicular to the plane of incidence.

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