Standing wave, also called stationary wave, combination of two waves moving in opposite directions, each having the same amplitude and frequency. In the case of waves moving in the same direction, interference produces a travelling wave; for oppositely moving waves, interference produces an oscillating wave fixed in space
The phenomenon is the result of interference—that is, when waves are superimposed, their energies are either added together or cancelled out
In the case of waves moving in the same direction, interference produces a travelling wave; for oppositely moving waves, interference produces an oscillating wave fixed in space
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the wave train (line B), after arriving at the fixed end of the rope, will be reflected back and superimposed on itself as another train of waves (line C) in the same plane. Because of interference between the two waves, the resultant amplitude (R) of the two waves will be the sum of their individual amplitudes
