A transparent cube of side 
made of a material of refractive index 
is immersed in a liquid of refractive index 
A ray is incident on the face 
at an angle 
(shown in the figure). Total internal reflection takes place at point 
on the face 
Then 
must satisfy:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
JEE Main 2019
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or 
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