Light in Air Is Initially Traveling Parallel to the Face

question 30

Multiple Choice

Light in air is initially traveling parallel to the face AC of an equilateral triangular prism, as shown in the figure. The prism is made of glass with an index of refraction of 1.52. If the light does not strike the face AC, what is the angle between the ray as it leaves the prism at face BC and the normal in air at that face?

• A) 83°
• B) 19°
• C) 59°
• D) 27°
• E) 55°

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