Question

The reflection factor is given by the ratio of ____________

(a) Reflected wave to incident wave

(b) Incident wave to reflected wave

(c) Sum of reflected and incident waves to difference of reflected and incident waves

(d) Difference of reflected and incident waves to sum of reflected and incident waves

I had been asked this question in an interview for job.

My question comes from Radio Wave Propagation in section Radio Wave Propagation of Antennas

Answer 1

Right choice is (a) Reflected wave to incident wave

Explanation: The reflection factor is given by the ratio of Reflected wave to incident wave.

\(ρ=\frac{reflected \,wave}{incident\, wave}=\frac{E_r}{E_i} \)

ρ=1 It means that surface is perfect reflecting medium.