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Questions  

Refractive index of the material of a prism is 3 and refracting angle of the prism is 60o. Then the minimum deviation is 

a
15o
b
45o
c
30o
d
60o

detailed solution

Correct option is D

sin⁡(δm+A2)=μsin⁡(A2)⇒sin⁡(δm+60o2)=3sin⁡30o=32∴ δm+60o2=60o→δm=60o

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Similar Questions

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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