The effective radius of earth is how many times the actual radius of earth at standard atmospheric conditions?(a) 3/4(b) 4/3(c) 1/4(d) 1/3This question was posed to me in an interview for internship.This intriguing question originated from Radio Wave Propagation in section Radio Wave Propagation of Antennas

The effective radius of earth is how many times the actual radius of e

1.	The effective radius of earth is how many times the actual radius of earth at standard atmospheric conditions?(a) 3/4(b) 4/3(c) 1/4(d) 1/3This question was posed to me in an interview for internship.This intriguing question originated from Radio Wave Propagation in section Radio Wave Propagation of Antennas
Answer» The correct choice is (a) 3/4 For explanation I WOULD SAY: Effective radius of earth is the EQUIVALENT radius of earth used to correct atmospheric refraction as the refractive INDEX VARIES linearly with height. It is 4/3 times the geometrical radius of the earth.

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