Question

G region is also known as _______

(a) Outer atmosphere

(b) Appleton layer

(c) Kennelly Heaviside layer

(d) Absorption layer

This question was addressed to me in a job interview.

This intriguing question comes from Radio Wave Propagation topic in division Radio Wave Propagation of Antennas

Answer 1

Correct answer is (a) Outer atmosphere

To elaborate: Outer atmosphere is also known as G region. It lies above 400km from the earth surface. E layer is called as Kennelly Heaviside layer and F layer is called as Appleton layer. D layer is also known as absorption layer for short wave signal at HF.