Doppler Effect as Applied to Sound Frequency

Doppler Effect as Applied to Sound Frequency - R.Chang...

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R. Chang Doppler Effect as Applied to Sound Frequency The frequency of a sound source as heard by an observer can change if  there is relative motion between the source and the observer.  If both are  stationary, then the observer should hear the same frequency as the  source frequency. Basic concepts must have before solving problems on Doppler Effect : 1.  Observer hears a higher  frequency when source is moving towards   the observer. 2. Observer hears a higher  frequency when observer is moving towards   the source. 3. Observer hears a lower  frequency when source is moving away  from  the observer. 4. Observer hears a lower  frequency when observer is moving away   from the source. Do you have to memorize these 4 concepts?  NO!!!  Pay attention to the  figures used to explain the Doppler effect.  More wavefronts per second will  be felt by the observer’s eardrum if he/she runs towards the source – thus 
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This note was uploaded on 08/29/2010 for the course PHY 2049 taught by Professor Criss during the Fall '08 term at University of South Florida.

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Doppler Effect as Applied to Sound Frequency - R.Chang...

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