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Unpolarised light is incident from air o...

Unpolarised light is incident from air on a plane surface of a material of refractive index 'mu`. 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

`i=sin^(-1) ((1)/(mu))`

B

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

C

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

D

`i=tan^(-1)((1)/(mu))`

Text Solution

Verified by Experts

The correct Answer is:
B
When reflected light rays and refracted rays are perpendicular , reflected light is polarised with electric field vector perpendicular to the plane of incidence.

Also, tan i=`mu` (Brewter angle)
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