A ray incident on the face of a prism is refracted and escapes through an adjacent face

PHYSICS · Subjective · A Level · Physics · Waves · Waves

Problem

A ray incident on the face of a prism is refracted and escapes through an adjacent face. What is the maximum permissible angle of the prism if it is made of glass with refractive index μ=1.5\mu=1.5?

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