Constructive Interference A pair of light or sound waves will experience interference when they pass through each other. The individual waves will add together (superposition) so that a new wavefront is created.
Destructive interference takes place when waves come together in such a manner that they completely cancel each other out. When two waves destructively interfere, they must have the same amplitude in opposite directions. There are many interesting wave phenomenon in nature, that cannot be defined by an individual wave
