Choose the correct answer

A ray of light travelling in a transparent medium of refractive index n falls, on a surface separating the medium from air at an angle of incidents of 45o . The ray can undergo total internal reflection for the following n,

- (a) n = 1.25

- (b) n = 1.33

- (c) n = 1.4

- (d) n = 1.5

Correct Answer:

(d) n = 1.5

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Answered on 29/10/2020 at 12:40PM by Thamizh