If the ratio of specific heats of a gas is 1.4, and the speed of sound in the gas at standard temperature and pressure is 330 m/s, what is the rms speed of the gas molecules?

If sound wave travel from air to water, which of the following remain unchanged?

If at same temperature and pressure, the densities for two diatomic gases are respectively ${d_1}$ and ${d_2}$, then the ratio of velocities of sound in these gases will be

A micro-wave and an ultrasonic sound wave have the same wavelength. Their frequencies are in the ratio (approximately)

To decrease the fundamental frequency of a stretched string fixed at both ends. Which of the following option is correct?

If C is rms speed of molecules in a gas and ‘v’ is the speed of sound waves in the gas, the value of $c/v$ for all diatomic gases is

A stone is hung in air from a wire which is stretched over a sonometer. The bridges of the sonometer are $L\,\,cm$ apart when the wire is in unison with a tuning fork of frequency $N$. When the stone is completely immersed in water, the length between the bridges is $l\,\,cm$ for re-establishing unison, the specific gravity of the material of the stone is

Two waves travelling in a medium in the x-direction are represented by , ${y_1} = A\sin \left( {\alpha t - \beta x} \right)$ and ${y_2} = A\cos \left( {\beta x + \alpha t - \pi /4} \right)$ where ${y_1}\;\,\,and\,\,{\rm{ }}{y_2}$ are the displacements of the particles of the medium, t is time, and  $\alpha \,and\,\beta$ are constants. The two waves have different

For the stationary wave $y = 4\sin \left( {\frac{{\pi x}}{{15}}} \right)\cos \left( {96\,\pi t} \right)$, the distance between a node and the next antinode is

The tones that are separated by three octaves have a frequency ratio of

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