An unpolarised light is incident at an interface of two dielectric media having refractive indices of 2 (incident medium) and 
(medium) respectively. To satisfy the condition that reflected and refracted rays are perpendicular to each other, the angle of incidence is 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
For reflected and refracted rays to be perpendicular, if 
is the angle of incidence and 
is the angle of refraction, then 
, giving 
.
Applying Snell's law: 
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