Light enters at an angle of incidence in a transparent rod of refractive index 
. For what value of the refractive index of the material of the rod the light once entered into it will not leave it through its lateralface whatsoever be the value of angle of incidence7.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: 
i . e ., 
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