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Problem 25 Medium Difficulty

A beam of light both reflects and refracts at the surface between air and glass, as shown in Figure P22.25. If the index of refraction of the glass is $n_{g},$ find the angle of incidence, $\theta_{1}$ in the air that would result in the reflected ray and the refracted ray being perpendicular to each other. Hint: Remember the identity sin $\left(90^{\circ}-\theta\right)=\cos \theta$

Answer

$\theta_{1}=\tan ^{-1}\left(n_{g}\right)$

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Top Physics 103 Educators
Marshall S.

University of Washington

Zachary M.

Hope College

Aspen F.

University of Sheffield

Meghan M.

McMaster University

Video Transcript

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Wesleyan University
Top Physics 103 Educators
Marshall S.

University of Washington

Zachary M.

Hope College

Aspen F.

University of Sheffield

Meghan M.

McMaster University