Doppler

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Doppler

Transcript of Doppler

Liu UCD Phy9B 07 1316-8. The Doppler EffectLiu UCD Phy9B 07 14Wave FrontsWave frontsTop ViewPoint Source2-D 3-DLiu UCD Phy9B 07 15Moving Listener & Stationary SourceSLSLSL LLfvvfvv vf vv v v vf ) 1 (/+ =+=+=+=Speed of sound: vSpeed of moving listener towards source: vLSpeed of sound relativeto listener: v+vLSource frequency: fSSound frequency received by listener:Moving towards source,+vL, fL>fS away, - vL,fL