A thin prism P 1 with angle 4º and made from glass of refractive index 1.54 is combined with thin prism P 2 made from glass of refractive index 1.72 to produce dispersion with out deviation. The angle of prism P 2 is
Text Solution
Verified by ExpertsThe correct answer is:
C
( μ 1 –1) A 1 + ( μ 2 – 1) A 2 = 0
∴ (1.54 – 1) 4 0 + (1.72 – 1) A 2 = 0
∴ A 2 = – 3 0
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