Speed of Sound Wave (Newton's Formula)

For every $1°\mathrm{C}$ rise in temperature, the velocity of sound waves

On an increase of $1°\mathrm{C}$ in temperature the speed of sound in air increases by _____.

The velocity of sound waves of frequency 200 vibrations per second at a place in the air medium when compared with the velocity of sound waves of frequency 400 vibrations per second is

The temperature at which speed of sound in air is double its speed at $0°\mathrm{C}$ is

Which of the following properties of sound is affected by change in air temperature?

Sound waves are travelling in a medium whose adiabatic elasticity is ${\mathrm{E}}_{\mathrm{H}}$ and isothermal elasticity is $\mathrm{E}$. The velocity of sound waves is proportional to

Decibel is 

Sound travels fastest in

The velocity of sound wave is maximum in

Sound travels in rocks in the form of

The decrease in speed of sound at high elevation is due to low pressure.

Velocity of sound is generally greater in solids than in gases at NTP.

A balloon is filled with hydrogen gas. For sound waves this balloon behaves like a convex lens.

The ratio of velocity of sound in hydrogen gas $\left(\gamma =\frac{7}{5}\right)$ to that in helium gas $\left(\gamma =\frac{5}{3}\right)$ at the same temperature is $\sqrt{\frac{21}{5}}$.

The changes in air pressure have no effect on the speed of sound.

The changes in temperature have no effect on the speed of sound.

The speed of sound in water is higher than that in air.

A sound has intensity level of $30$ decibel. Its intensity is _____$\times {10}^{-9} \raisebox{1ex}{$\mathrm{watt}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^2$}\right.$.

Decibel is the unit of _____.

The speed of sound in moist air is _____ than the speed in dry air.