The speed of light in media 
and 
are 
and 
, respectively. A ray travels from medium 
to the medium 
with an angle of incidence θ. The ray suffers total internal reflection. Then, the value of the angle of incidence 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
For total internal reflection, the angle of incidence of light in denser medium must be greater than the critical angle for the pair of media in contact, i.e. 
.
We have, 
Given, 
Here, 
For total internal reflection, 
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