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Photometry and Geometrical Optics

Problem 5.17

A light beam falls upon a plane-parallel glass plate d=6.0 cmd=6.0 \mathrm{~cm} in thickness. The angle of incidence is θ=60∘.\theta=60^{\circ} . Find the value of deflection of the beam which passed through that plate.

Reveal Answer
x=[1−(1−sin⁡2θ)/(n2−sin⁡2θ)]dsin⁡θ=3.1 cmx=\left[1-\sqrt{\left(1-\sin ^{2} \theta\right) /\left(n^{2}-\sin ^{2} \theta\right)}\right] d \sin \theta=3.1 \mathrm{~cm}
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