Question

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 ?

• A. Reflected light is polarised with its electric vector parallel to the plane of incidence
• B. $i=sin^{-1}\left(\frac{1}{\mu}\right)$
• C. Reflected light is polarised with its electric vector perpendicular to the plane of incidence
• D. $i=tan^{-1}\left(\frac{1}{\mu}\right)$

Answer 1

Answer: (C)

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

Answer 2

The correct option is (C): Reflected light is polarised with its electric vector perpendicular to the plane of incidence