the vividh bharati station of All india Radio, Delhi , broadcasts on a frequency of 1,368 kHz (kilo hertz). Calculate the wavelength of the electromagnetic radiation emitted by transmitter . Which part of the electromagnetic spectrum does it belong to

Explanation

The frequency of the radiation emitted,
`" " v = 1368 kHz = 1368 xx 10^3 Hz`
`" . = 1368 xx 10^(3) s^(-1)`
We know that `lambda xx v = c "or" lambda = c/v`
where `c = 3.0 xx 10^8 ms^(-1)`
`lambda = (3.0 xx 10^8 ms^(-1))/(1368 xx 10^3 s^(-1)) = 219.3 m`
Thus, wavelength of radiowave broadcast by the station = 219.3 m`
It belongs to radiowave region of the electromagnetic spectrum .