Interference

The difference between constructive and destructive interference is constructive increases amplitude and the destructive interference decrease amplitude.constructive interference is when the crest of a wave is super-positioned with the crest of another wave to increase the amplitude. An example is when you plug in something into speakers to make it sound loader. Destructive interference is when the crest of a wave is super-positioned with the crest of another wave to decrease the amplitude. Headphone is an example of a destructive wave because it cancels out noise.