Question

Why is the dominant mode (2,2) - at twice the orbital frequency of the binary?

Answer 1

This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Phase and Group Velocity”.

1. In a waveguide, which of the following condition is true always?

a) phase velocity = c

b) group velocity = c

c) phase velocity > c

d) phase velocity < c

View Answer

Answer: c

Explanation: The phase velocity is always greater than the speed of light in waveguides. This implies the group velocity is small.