Question

If a fmcw radar transmitting at a average frequency of 100mhz the rate of triangular frequency variation is 20khz calculate the beat frequency during the increase and decrease in portions of the fm cycle the radar target is given below the rate of triangular frequency 20khz

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.