Unpolarised light is incident from air on plane surface of a material of refractive index μ . At a…

1. $i={\sin }^{-1}\left(\frac{1}{\mu }\right)$
2. Reflected light is polarized with its electric vector perpendicular to the plane of incidence
3. Reflected light is polarized with its electric vector parallel to the plane of incident
4. $i={\tan }^{-1}\left(\frac{1}{\mu }\right)$

Solution

when reflected light rays and reflected rays are perpendicular, reflected light is polarised with electric field vector perpendicular to the plane of incidence.
Also. Brewster's law $\mu =\tan i$.

Asked in: NEET 2018

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