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Polarization of Light

Problem 5.173

Using the Fresnel equations, find: (a) the reflection coefficient of natural light falling normally on the surface of glass; (b) the relative loss of luminous flux due to reflections of a paraxial ray of naturallight passing through an aligned optical system comprising five glass lenses (secondary reflections of light are to be neglected).

Reveal Answer
 5.173. (a) ρ=(n−1)2/(n+1)2=0.040 \text { 5.173. (a) } \rho=(n-1)^{2} /(n+1)^{2}=0.040 (b) ΔΦ/Φ=1\Delta \Phi / \Phi=1 −(1−ρ)2N=0.34,-(1-\rho)^{2 N}=0.34, where NN is the number of lenses.
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