A 60° Prism Has a Refractive Index of 1

question 114

Multiple Choice

A 60° prism has a refractive index of 1.52. Calculate the angle of incidence for the initial light ray that is then refracted inside the prism and just undergoes total internal reflection at the opposite face of the prism.

• A) 41.1°
• B) 18.9°
• C) 29.4°
• D) 30.6°
• E) 60.6°

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