Q. A uniform plane wave traveling in free space and having the electric field
is incident on a dielectric medium (relative permittivity > 1, relative permeability = 1) as shown in the figure and there is no reflected wave.
The relative permittivity (correct to two decimal places) of the dielectric medium is
Ans: 2
Sol:
The wave has Ei direction and propagation direction both in same plane (ZX). the wave is plane of incidence (P) polarized.
.