0 votes 0 votes The phase velocity for the $\mathrm{TE}_{10}$ – mode in an air-filled rectangular waveguide is less than $c$ equal to $c$ greater than $c$ none of the above ( $c$ is the velocity of plane waves in free space) Others gate2002-ec + – admin asked Sep 27, 2022 • edited Nov 30, 2023 by makhdoom ghaya admin 46.4k points 70 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.