Which frequency range is allocated for commercial $FM$ radio broadcasting?

What is the bit rate in $bits/sec$ for a signal with $16$ quantization levels and a sampling rate of $8 \, kHz$?

For television broadcasting,the frequency employed is normally in the range of,

The maximum range $(R_{max})$ of a radar is proportional to:

The height of a transmission antenna is $49 \,m$ and that of the receiving antenna is $64 \,m$. What should be the maximum distance between them for line of sight transmission (in $\,km$)?

What is the frequency of an $FM$ transmitter without a signal input?