A Prism Has a Vertex Angle of 60° and an Index

question 62

Multiple Choice

A prism has a vertex angle of 60° and an index of refraction of 1.52. What is the minimum angle of incidence, measured away from the vertex, for a ray of light to emerge from the other side of the prism?

• A)25.6°
• B)38.7°
• C)29.4°
• D)32.1°
• E)33.3°

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