Question

Wave A has an amplitude of 2 and wave B has an amplitude of 2 as shown below. What will happen when the crest of wave A meets the trough of wave B?



They will interfere to create a crest with an amplitude of 2.

They will interfere to create a crest with an amplitude of 0.

They will bounce off each another.

Answer 1

Crests and troughs cancel each other out.
It will create destructive interference and the amplitude will be 0.

Answer 2

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