Difference between revisions of "Dictionary:Wave velocity"

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The speed with which a wave advances. If the medium is dispersive (i.e., if the speed depends on frequency), individual wave crests move with a velocity different from that with which the energy moves; the former is <b>phase velocity</b>, the latter <b>group velocity</b>. Phase and ray (group) velocity may also differ because of anisotropy; see [[Dictionary:anisotropy_(seismic)|''anisotropy (seismic)'']].
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<translate>{{#category_index:W|wave velocity}}
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The speed with which a wave advances. If the medium is dispersive (i.e., if the speed depends on frequency), individual wave crests move with a velocity different from that with which the energy moves; the former is <b>phase velocity</b>, the latter <b>group velocity</b>. Phase and ray (group) velocity may also differ because of anisotropy; see [[Special:MyLanguage/Dictionary:anisotropy_(seismic)|''anisotropy (seismic)'']].
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Revision as of 09:58, 5 April 2019

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The speed with which a wave advances. If the medium is dispersive (i.e., if the speed depends on frequency), individual wave crests move with a velocity different from that with which the energy moves; the former is phase velocity, the latter group velocity. Phase and ray (group) velocity may also differ because of anisotropy; see anisotropy (seismic).