Question

multiple choice question
if waves traveling in opposite directions meet and a wave crest from each meets at the same place and at the same time, the result is ______
o similar interference
o destructive interference
o constructive interference
o out - of - phase interference

Explanation:

When two waves traveling in opposite directions meet and a wave crest from each meets at the same place and at the same time, their amplitudes add up. This is the definition of constructive interference. In constructive interference, the resultant wave has a larger amplitude than the individual waves. In contrast, destructive interference occurs when a crest and a trough meet (canceling each other out to some extent). "Similar interference" and "out - of - phase interference" are not standard terms for this phenomenon.

Answer:

constructive interference