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The refractive index of the material of a prism of refracting angle `74^@` is 1.66 for a certain monochromatic ray. What should be the minimumangle of incidence of this ray on the prism so that no total internal reflection takes place as they come out of the prism.

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To solve the problem of finding the minimum angle of incidence for a ray of light passing through a prism without experiencing total internal reflection, we can follow these steps: ### Step 1: Understand the Problem We are given: - Refractive index of the prism material, \( \mu = 1.66 \) - Angle of the prism, \( A = 74^\circ \) We need to find the minimum angle of incidence, \( i \), such that no total internal reflection occurs when the ray exits the prism. ...
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