What does group velocity mean?
Definitions for group velocity
group veloc·i·ty
This dictionary definitions page includes all the possible meanings, example usage and translations of the word group velocity.
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Wiktionary
group velocitynoun
the propagation velocity of the envelope of a modulated travelling wave, which is considered as the propagation velocity of information or energy contained in it.
Wikidata
Group velocity
The group velocity of a wave is the velocity with which the overall shape of the waves' amplitudes — known as the modulation or envelope of the wave — propagates through space. For example, imagine what happens if a stone is thrown into the middle of a very still pond. When the stone hits the surface of the water, a circular pattern of waves appears. It soon turns into a circular ring of waves with a quiescent center. The ever expanding ring of waves is the wave group, within which one can discern individual wavelets of differing wavelengths traveling at different speeds. The longer waves travel faster than the group as a whole, but they die out as they approach the leading edge. The shorter waves travel more slowly and they die out as they emerge from the trailing boundary of the group.
Numerology
Chaldean Numerology
The numerical value of group velocity in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of group velocity in Pythagorean Numerology is: 8
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"group velocity." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/group+velocity>.
.gif/300px-Wave_packet_propagation_(phase_faster_than_group,_nondispersive).gif "group velocity")
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