Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is μ , a ray, incident at an angle θ , on the face AB would get transmitted through the face AC of the prism provided:
A
θ > sin –1 
B
θ < sin –1 
C
θ > cos –1 
D
θ < cos –1 
Text Solution
Verified by ExpertsThe correct answer is:
A
For transmission
A – r 1 < i C
sin (A – r 1 ) < sin i C
sin (A – r 1 ) < 
A – r 1 < 
r 1 > A – sin –1 
sin r 1 > sin 
∴ sin r 1 = 
θ > sin –1 
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