The Doppler effect is the perceived change in sound frequency caused by the movement of the observer and the sound source moving in relation to each other. ... As the car passes the observer, the pitch of the sound created by the car decreases.
Fig. 1. Experimental set-up for the case of a moving sound source and observer at rest.
Fig. 2. Circuit diagram.
*For full explanation, download the file down below.
|Acoustic Doppler Effect 228 KB|
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