Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A transparent block A having refractive index 
is surrounded
by another medium of refractive index 
as shown in figure. A light ray is incident on the flat face of the block with incident angle 
as shown in figure. What is the maximum value of 
for which light suffers total internal reflection at the top surface of the block ?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
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