the velocity of finite numbers of waves undergoing simple harmonic motion, equal to the phase velocity when it does not vary with the wavelengths of the waves. The group velocity of the set of waves produced in water when a stone is dropped is less than the velocity of the individual waves.
FOR LEXICAL ALIMENTATION, TAKE THIS WORD OF THE DAY QUIZ!
Nourish your vocabulary with a refresher on the words from the week of September 14–20, 2020!
Question 1 of 7
What does “blatherskite” mean?
Origin of group velocity
First recorded in 1885–90
Words nearby group velocity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020