Q1:

In a symmetrical slab waveguide, the phase velocity of TE, mode at cut off is $v_{P1}$,so the phase velocity of $T{M}_2$mode at cut off will be

Q2:

The phenomenon employed in the waveguides depuration is

Q3:

The domestic mode in waveguide is the mode which has

Q4:

Which function in the frequency calculation is used by circular waveguides

Q5:

The attenuation coefficient of the wave having resistance of 15$\Omega$ in a 50$\Omega$ line is

Q6:

For a wave propagating in Z-direction in a hollow rectangular waveguide, TEM wave has

Q7:

An electromagnetic wave propagating in a air filled $10\times 4$waveguide has its electric filed in phase form given as$E_{zs}=5\sin \left(20\pi x\right)\sin \left(25\pi y\right)e^{-j\beta Z}v/m$.What is mode of propagation of the EM wave?

Q8:

An a$\times$b rectangular waveguide is depurating in 4 different modes as $T{M}_{11},T{M}_{12},T{E}_{10},T{E}_{20.}$ If a = 2b then the ascending order of operating modes for their cut off frequencies will be.

Q9:

An air filled rectangular waveguide has inner dimension of 3cm $\times$2cm. The wave impedance of $T{E}_{20}$mode of propagation in the waveguide at a frequency of 30 GHz is (free space impedance $\eta =377\Omega$)

Q10:

A rectangular waveguide having $T{E}_{10}$mode has dominant mode is having a cut off frequency of 18-GHz for the $T{E}_{30}$mode. The inner broad-wall dimension of the rectangular waveguide is:

Q11:

Which of the following statements is true regarding the fundamental mode of the metallic waveguides show?

Q12:

Two coaxial cable 1 and 2 are filled with dielectric constants ${\epsilon }_{r_1}and{\epsilon }_{r_2}$ respectively. The ratio of wavelengths in two cables $\left({\lambda }_1/{\lambda }_2\right)$is

Q13:

In which direction is the plane wave $\overline{E}=50\sin ({10}^{8}t+2z)\widehat{a}y$V/m travelling ?

Q14:

The depth of penetration of electromagnetic wave in a medium having conductivity $\mathrm{\sigma }$at a frequency of 1 MHz in 25cm. the depth of penetration at a frequency of 4MHz will be