What will occur when the trough of Wave A overlaps the trough of Wave B?

A trough is a displacement in the same direction as another trough. When the troughs overlap, their displacements add, producing constructive interference and a larger-amplitude wave. The resulting wave has more energy than either wave alone, so the correct choice is “Constructive interference will occur, causing the new wave to have more energy than Wave A or Wave B.”

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