Question

Calculate the velocity of a wave with frequency 2 x10^9 rad/s and phase constant of 4 x 10^8 units. (a) 0.5 (b) 5 (c) 0.2 (d) 2 I have been asked this question during an internship interview. Question is taken from Lossy and Lossless Dielectrics topic in section EM Wave Propagation of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

Answer 1

Right choice is (b) 5 To explain I would say: The velocity of a wave is the ratio of the frequency to the phase constant. Thus V = ω/β. On substituting the given values, we get V = 2 x10^9/ 4 x 10^8 = 5 units.