A ray in air is incident at 45° on a plane-parallel slab of thickness 8 cm and refractive index 1.500. What is the lateral displacement?
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A ray in air is incident at 45° on a plane-parallel slab of thickness 8 cm and refractive index 1.500. What is the lateral displacement?

G1 Physics · Accepted Answer

Snell's law gives r=28.13°. Then d=t sin(i−r)/cos r=2.63 cm.