(a) Prove that a ray of light incident on the surface of a sheet of plate glass of thickness t emerges from the opposite face parallel to its initial direction but displaced sideways, as in Figure

(b) Show that, for small angles of incidence θ, this displacement is given by

x = tθ n – 1/n,

Where n is the index of refraction of the glass and θ is measured in radians.

Transcribed Image Text:

10