LECTURE DEMONSTRATION MANUAL | Instructional Research Lab : ucla physics
Group and Phase Velocity

W.2.12 Group and Phase Velocity

— can be illustrated with Moiré patterns on the overhead projector, or by adding sine waves of two different frequencies on the oscilloscope (M.P. Hagelberg, Am.J.Phys. 46(5),579 (1978)), or by showing a good film strip on the subject (#600).

 

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