Click and drag the circles to change the path or the phase difference between wave
1 and wave 2.
The resultant wave has maximum amplitude when the phase difference between
wave 1 and wave 2 is 0, 2p, 4p, ...
The resultant wave has zero amplitude when the phase difference between wave
1 and wave 2 is p, 3p, 5p, ...
Two waves moving on the same medium interfere
to produce a resultant wave. Waves interference
occurs when two or more waves move in the same direction at the same time.