Progressive Wave: All points have same amplitude, Points exactly 1 wavelength apart are in phase, inbetween this phase varies from 0 to 2Pi, Energy is transferred along the wave, No nodes or antinodes, Standing/stationary wave: Each point has a different amplitude , Points between nodes are in phase, Points on either side of a node are in antiphase, Energy is stored, Energy is not transferred, Has nodes , Has antinodes,

Standing waves vs Progressive waves

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