When we hear a sound, we can identify its source from
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(d)The sounds of different source are said to differ in quality. The number of overtones and their relative intensities determines the quality of any musical sound.
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A closed organ pipe $150 \mathrm{~cm}$ long gives $7$ beats per second with an open organ pipe of length $350 \mathrm{~cm}$, both vibrating in fundamental mode. The velocity of sound is_________ $\mathrm{m} / \mathrm{s}$.
A source $(S)$ of sound has frequency $240 \ Hz$. When the observer $(O)$ and the source move towards each other at a speed $v$ with respect to the ground (as shown in Case $1$ in the figure), the observer measures the frequency of the sound to be $288 \ Hz$. However, when the observer and the source move away from each other at the same speed $v$ with respect to the ground (as shown in Case $2$ in the figure), the observer measures the frequency of sound to be $n Hz$. The value of $n$ is. . . . . .
A tuning fork of unknown frequency produoes $4$ beats per second when sounded with another tuning fork of frequency $254 \,Hz$. It gives the same number of beats per second when unknown tuning fork loaded with wax. The unknown frequency before loading with wax is ..........
Equation of the progressive wave is given by : $y = a\sin \pi (40t - x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is ..... $m/s$
In a resonance pipe the first and second resonances are obtained at depths $22.7 cm$ and $70.2 cm$ respectively. What will be the end correction ..... $cm$
A policemen buzz a whistle of frequency $400\ Hz$. A car driver is approaching the policemen. The speed of car is $54\ kmh^{-1}$. The change in frequency experienced by the driver, when driver approaches the policemen and after he crosses the policemen, is ... $Hz$ [Velocity of sound is $350\ ms^{-1}$]
A transverse wave is represented by $y=2 \sin$ $(\omega t - kx ) cm$. The value of wavelength (in $cm$ ) for which the wave velocity becomes equal to the maximum particle velocity, will be.