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

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

answer is B.

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Detailed Solution

When i = θpWe can write i + r = 900.The reflected ray is completely polarised and contains σ-Component of electric field.The refracted ray is partially polarised and contains entire π - component and a small fraction of σ- component. So option - (2) is right.

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