Answered: Normal 90.0° A 40.0° | bartleby

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A ray of light traveling in air is incident at angle ua on one face of a 90.0° prism made of glass. Part of the light refracts into the prism and strikes the opposite face at point A. If the ray at A is at the critical angle, what is the value of θ_a?

Normal
90.0°
A
40.0°

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