A ray in air is incident at 45° on a plane-parallel slab of thickness 14 cm and refractive index 1.414. What is the lateral displacement?
Options

Question

A ray in air is incident at 45° on a plane-parallel slab of thickness 14 cm and refractive index 1.414. What is the lateral displacement?

G1 Physics · Accepted Answer

Snell's law gives r=30.00°. Then d=t sin(i−r)/cos r=4.18 cm.