Frequencies in the $UHF$ range normally propagate by means of:

An antenna is placed in a dielectric medium of dielectric constant $6.25$. If the maximum size of the antenna is $5.0 \, mm$,what is the minimum frequency of the signal it can radiate in $GHz$? (Given $\mu_{r} = 1$ for the dielectric medium)

Which characteristic of a carrier light wave is modulated for the modulation of a light wave?

Which type of propagation is used to transmit radio waves from one place to another?

$A$ carrier wave has a frequency of $1000 \, kHz$ and an amplitude of $20 \, V$. It is amplitude modulated by a signal wave of frequency $10 \, kHz$ and amplitude $10 \, V$. The modulation index and the frequencies of the $LSB$ and $USB$ are,respectively:

Which of the following statements is $NOT$ correct?