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

Estimate the speed of sound (in $m/s$) in air at standard temperature and pressure $(STP)$. The mass of $1$ mole of air is $29.0 \times 10^{-3} \; kg$.

What is the effect of pressure on the speed of sound in a medium,if pressure is doubled at constant temperature?

Write Newton's equation for the speed of a sound wave in air.

Assume that the displacement $(s)$ of air is proportional to the pressure difference $(\Delta p)$ created by a sound wave. Displacement $(s)$ further depends on the speed of sound $(v)$,density of air $(\rho)$,and the frequency $(f)$. If $\Delta p \approx 10 \, Pa$,$v \approx 300 \, m/s$,$\rho \approx 1 \, kg/m^3$,and $f \approx 1000 \, Hz$,then $s$ will be of the order of (take multiplicative constant to be $1$).

The figure below shows pressure variation in two different sound waves in air with time at a given position. Both the figures are drawn to the same scale. Which of the following statements is true?