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A prism of angle A = 1 ° μ = 1 . 5 . A good estimate for the minimum angle of deviation (in degrees) is close to N 10 . Value of N is … … …

Correct answer

5

Step-by-step solution

Given, Angle of prism, A = 1 ° Refractive index of prism, μ = 1 . 5 For this prism, minimum angle of deviation is given by δ = ( μ - 1 ) A ⇒ δ = ( 1 . 5 - 1 ) × 1 ° = 1 2 = 5 10 = N 10 ⇒ N = 5

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