The wavelength of sound waves in hydrogen gas corresponding to the lower limit of audibility is ........ $m$ (speed of sound in hydrogen gas is about $1350 \, m/s$).

When pressure on a gaseous medium is changed at constant temperature,what will be the effect on the speed of sound wave in it?

The frequency of a sound wave is $n$ and its velocity is $v$. If the frequency is increased to $4n$,the velocity of the wave will be

Calculate the temperature at which the speed of sound will be two times its value at $0\,^oC$. (in $,K$)

Two monoatomic ideal gases $A$ and $B$ of molecular masses $m_1$ and $m_2$ respectively,are enclosed in separate containers kept at the same temperature. The ratio of the speed of sound in gas $A$ to that in gas $B$ is given by

Explain the propagation of sound waves in:
$(i)$ air
$(ii)$ solids