A student in a parked car honks the horn, which has a `proper' frequency of 300 Hz. An observer in an approaching vehicle measures the frequency of the sound to be 329 Hz. Calculate the speed of the approaching vehicle. Use 343 m/s as the speed of sound in air.
This is a problem related to the Doppler Effect.
<br>The relevant formula is
<br>fprime = f * (v +/- deltav) / v
<br>where fprime = apparent freq. (Hz)
<br> f = true ...
A problem related to the Doppler Effect is demonstrated.