Question

# A ray of light passes through an equilateral glass prism, such that the angle of incidence is equal to the angle of emergence. If the angle of emergence is 34times the angle of prism. The refractive index of the glass prism is:

A
1.5
B
1.414
C
1.616
D
1.7
Solution
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#### i=e∴r1=r2r1+r2+180−A=180A=r1+r2r2=r1=A/2sinisinr1=μμ=sin(3A/4)sin(A/2) =sin(3×604)sin(60/2) =sin45sin30

6
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