prajput
Ansys Employee
When two waves that are in-phase with each other (i.e. the crest of wave 1 coincides with crest of wave 2), the amplitude of the resultant wave will be greater. This is known as constructive interference. On the other hand when the two waves are out-of-phase (i.e. crest of wave 1 coincides with trough of wave 2) the amplitude of the resultant wave will be smaller. This is called destructive interference. Destructive interference is what noise canceling technology uses.