Question

Definition of constructive and destructive interference in physics

Answer 1

Answer:

When two waves meet in such a way that their crests line up together, then it's called constructive interference. The resulting wave has a higher amplitude. In destructive interference, the crest of one wave meets the trough of another, and the result is a lower total amplitude.

Explanation:

By reasoning:

Difference b/n them

The sum of two waves can be less than either wave, alone, and can even be zero. This is called destructive interference. When the peaks of the waves line up, there is constructive interference. Similarly, when the peaks of one wave line up with the valleys of the other, the waves are said to be "out-of-phase".