Published by:
CGP EDU Academic Team
Published on: August 21, 2026
Unpolarised light is incident from air on a plane surface of a material of refractive index 
. At a particular angle of incidence 
, 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
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
Text Solution
Verified by ExpertsThe correct answer is:
This is the condition of polarisation in which light is incident on an interface at Brewster's angle. Thus reflected light is polarised with its 
perpendicular to the plane of incidence.
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