英语词汇“phase velocity”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

phase velocity

noun Physics

The speed of propagation of a sine wave or a sinusoidal component of a complex wave, equal to the product of its wavelength and frequency.The speed of each frequency component is called phase velocity, while the packet's speed is called group velocity....

Notice the light wave is still only propagating at c, the phase velocity of the wave, however, may travel less, or even greater than at the speed of light.
For example, the phase velocity of a wave packet is a pseudo process but the group velocity is a causal process; yet both licence reliable predictions.

单词	phase velocity
释义	phase velocity noun Physics The speed of propagation of a sine wave or a sinusoidal component of a complex wave, equal to the product of its wavelength and frequency.The speed of each frequency component is called phase velocity, while the packet's speed is called group velocity.... Notice the light wave is still only propagating at c, the phase velocity of the wave, however, may travel less, or even greater than at the speed of light. For example, the phase velocity of a wave packet is a pseudo process but the group velocity is a causal process; yet both licence reliable predictions.
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