Electromagnetic Field Theory - Engineering

Q1:

When a plane wave is incident normally from dielectric '1' (μ0, ε1) onto dielectric '2' (μ0, ε2) the electric field of the transmitted wave is 2 times the electric field of the reflected wave. The ratio ε21 is

A 0.5

B 1

C 2

D 4

ANS:D - 4

No answer description is available.