Assertion: wave's trough | /r/CapableOf | move at the phase velocity
Facets:
Source sentences:
text: The envelope of a wave packet (see figure on right) will travel at the group velocity, while the individual peaks and troughs within the envelope will move at the phase velocity.
text: The envelope of a wave packet (see figure on right) will travel at the group velocity, while the individual peaks and troughs within the envelope will move at the phase velocity.