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Asked by Jeff Helper

A light ray enters from glass (n1 = 1.5) to air (n2 = 1.0). Calculate the incident angle at which Θ2 (transmission angle) equals 90 degrees.
16 years ago

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Answered by bobpursley
and your thinking (with Snells law) is?

You have to assume the angles are measured to the normal.
16 years ago

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