Answer
Constructive interference is the interaction of waves from two sources that align with overlapping crests, resulting in a wave of greater amplitude. Destructive interference is the interaction of waves from two sources aligned so that the crest of one overlaps the trough of the other, resulting in cancellation.
Work Step by Step
Interference is the superposition of two or more waves overlapping in space, resulting in either an increase in amplitude or a decrease in amplitude.
