example of constructive interference
In general, waves can interfere with each other in one of two ways: constructively or destructively. When the crests of two waves and the troughs of two waves arrive at a given spot at the same time, their effects are added to each other. The result is constructive interference.When the crest of one wave and the trough of a second wave arrive at the same time, their effects cancel each other out. The result is destructive interference. Interference of sound waves.Constructive and destructive interference can be detected by the intensity of the result. For example, suppose that two sound waves interfere with each other constructively.In that case, the sound is louder than is the case for either wave individually.n general, waves can interfere with each other in one of two ways: constructively or destructively. When the crests of two waves and the troughs of two waves arrive at a given spot at the same time, their effects are added to each other. The result is constructive interference.