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Questions  

An equilateral prism ABC is placed in air with its base side BC lying horizontally along x-axis. A light ray 3z+x=10  is incident at a point P on face AB of the prism.
The value of  μ of prism for which the ray grazes the face AC is


 

a
32
b
23
c
2
d
2

detailed solution

Correct option is B

This ray falls normally on AB r1=0 , r2=A=C=600μ=1sin600=23

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ABC is an isosceles right angled triangle with the angle BAC 90o. A ray of light parallel to the base BC strikes the face AB.  The refracted ray in the prism strikes the base BC. If the refractive index of the material of the prism is 2, find the total angle of deviation of the final emergent ray


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