Physics - Sound Wave Question with Solution | TestHub

A source (S) of sound has frequency $240\mathrm{Hz}$. When the observer $(\mathrm{O})$ 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 $288\mathrm{Hz}$. 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 $n\mathrm{Hz}$. The value of $n$ is ______