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A prism of refracting angle 60° gives a minimum deviation of 30°. Find the refractive index of its material.
Original Khojo Papers practice question — not from a past board paper.
Answer
√2, about 1.414
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
n = sin[(A + D)/2] ÷ sin(A/2) = sin 45° ÷ sin 30° = 0.707 ÷ 0.5 = 1.414.
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