Q$2$: Point A and B are located $5$ meters and $2$ meters from the source of the sound. If $I_A$ and IB are intensities at A and B $,$ then predict, $I_A$ : IB$.$

$[1\mathrm{.}5$ Marks$]$

Q$3$: Explain the three categories of sound waves.

$[1\mathrm{.}5$ Marks$]$