Question

Choose which of following condition is not required for a waveguide to exist. (a) The dimensions should be in accordance with desired frequency (b) Cut-off frequency should be minimum 6GHz (c) The shape should be spherical (d) No specific condition is required for waveguide design This question was addressed to me in an online interview. This intriguing question originated from Spherical Coordinate System topic in portion Coordinate Systems and Transforms 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 option is (c) The shape should be spherical To explain: A waveguide need not be spherical, it has to be rectangular or circular, as it violates the propagation of the wave.