A ray of light is incident on the hypotenuse of a right-angled prism after travelling parallel to the base inside the prism. If m is the refractive index of the material of the prism, the maximum value of the base angle for which light is totally reflected from the hypotenuse is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
If 
maximum value of base angle for which light is totally reflected form hypotenuse.
minimum value of angle of incidence at hypotenuse for total internal reflection
This is maximum value ' 
' can have.
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