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Questions  

A glass prism has refracting angle 900. If angle of minimum deviation is 300, refractive index of the material of the prism is

a
2
b
32
c
3
d
4

detailed solution

Correct option is B

(2)μ=sin12 δm+Asin A2 = sin900+3002sin9002=321/2 =32

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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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