A ray of light travelling in a transparent medium of refractive index 
, falls on a surface separating the medium from air at an angle of incidence of 
. For which of the following value of 
, the ray can undergo total internal reflection?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: For total internal reflection, 
where, 
angle of incidence
critical angle
But, 
or 
Hence, option is correct.
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