Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider an equilateral prism (refractive index 
). A ray of light is incident on its one surface at a certain angle 
. If the emergent ray is found to graze along the other surface then the angle of refraction at the incident surface is close to 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Equilateral prism.
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