Calculate the wavelength of a sound wave whose frequency is $220 \,Hz$ and speed is $440 \,m/s$ in a given medium. (in $,m$)

What is reverberation? How can it be reduced?

Which wave property determines $(a)$ loudness,$(b)$ pitch?

The frequency of a source of sound is $100 \, Hz$. How many times does it vibrate in a minute?

$A$ submarine emits a sonar pulse,which returns from an underwater cliff in $1.02\, s$. If the speed of sound in salt water is $1531\, m/s$,how far away is the cliff (in $, m$)?

Two children are at opposite ends of an aluminium rod. One strikes the end of the rod with a stone. Find the ratio of times taken by the sound wave in air and in aluminium to reach the second child.