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Questions  

Angle of deviation (δ) by a prism (refractive index = μ and supposing the angle of prism A to be small) can be given by

a
δ=(μ−1)A
b
δ=(μ+1)A
c
δ=sin⁡A+δ2sin⁡A2
d
δ=μ−1μ+1A

detailed solution

Correct option is A

δ=(μ−1)A

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