A thin prism P1 having angle 4 and refractive index 1.54 is combined with another thin prism P2 of refractive index 1.72 for producing dispersion without deviation. The angle of P2 is?

A thin prism P1 having angle 4 and refractive index 1.54 is combined

1.	A thin prism P₁ having angle 4 and refractive index 1.54 is combined with another thin prism P₂ of refractive index 1.72 for producing dispersion without deviation. The angle of P₂ is?
A.	4
B.	5.33
C.	3
D.	2.6
Answer» D. 2.6

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A thin prism P1 having angle 4 and refractive index 1.54 is combined with another thin prism P2 of refractive index 1.72 for producing dispersion without deviation. The angle of P2 is?

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A thin prism P₁ having angle 4 and refractive index 1.54 is combined with another thin prism P₂ of refractive index 1.72 for producing dispersion without deviation. The angle of P₂ is?