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 combine

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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