The velocity of a wave travelling in the air medium without transmission lines or waveguides(wireless) is(a) 6 x 10^8(b) 3 x 10^8(c) 1.5 x 10^8(d) 9 x 10^8This question was addressed to me during an online exam.This question is from Plane Waves in Free Space topic in section EM Wave Propagation of Electromagnetic Theory

The velocity of a wave travelling in the air medium without transmissi

1.	The velocity of a wave travelling in the air medium without transmission lines or waveguides(wireless) is(a) 6 x 10^8(b) 3 x 10^8(c) 1.5 x 10^8(d) 9 x 10^8This question was addressed to me during an online exam.This question is from Plane Waves in Free Space topic in section EM Wave Propagation of Electromagnetic Theory
Answer» Correct CHOICE is (b) 3 X 10^8 Explanation: In free space or air medium, the velocity of the wave propagating will be same as that of the LIGHT. Thus the velocity is the speed of light, V = C. It is given by 3 x 10^8m/s.

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