Unformatted text preview: 4) Under what conditions does a shock wave occur? 5) What is Huygens’s principle and what does it help us understand? 6) If an observer moves toward a source of sound, or a source moves toward and observer, the observed pitch increases. Does the wavelength change in either of these situations? Explain. 7) Does the Doppler effect depend on how far away a source and receiver are from each other? Explain....
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- Spring '08
- Hertz, huygens, Doppler eﬀect depend, observed pitch increases