A ray of light incident at an angle θ on a refracting face of a prism emerges from the other face normally. If the angle of the prism is 
and the prism is made of a material of refractive index 1.5, the angle of incidence is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Since, deviation
By geometry, angle of refraction by first surface is 
. Using snell's law for prism,
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