group velocity


Definition of group velocity

: the velocity with which some definite peculiarity of a composite wave train (as an interference maximum) advances through a medium — compare phase velocity

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First Known Use of group velocity

1881, in the meaning defined above

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The first known use of group velocity was in 1881

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Cite this Entry

“Group velocity.” Dictionary, Merriam-Webster, Accessed 23 Nov. 2020.

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