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Questions  

For a small angled prism, angle of prism l, the angle of minimum deviation (δ) varies with the refractive index of the prism as shown in the graph

a
Point P corresponds to μ = l
b
Slope of the line PQ = A/2
c
Slope = 2A
d
None of the above statements is true

detailed solution

Correct option is A

At  P,δ=0=Aμ−1⇒μ=1.Also  δm=μ−1A=Aμm−AComparing  it  with  y=mx+cSlope  of  the  line  =m=A

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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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