Physics - Sound Wave Question with Solution | TestHub

A receiver and a source of sonic oscillations of frequency $n=2000$ Hz are located on the $x$-axis. The source swings harmonically along that axis with a circular frequency $\omega$ and an amplitude $a=50$ cm. At what value of $\omega$ will the frequency band width registered by the stationary receiver be equal to $\Delta n=200$ Hz? The velocity of sound is $v=340$ m/s. (answer in $rad/s$).