To say that one wave is out of phase with another is to say that the waves are
A) of different wavelengths.
B) out of step.
C) of different amplitudes.
D) of different frequencies.
E) all of these

Question

Quizplus · Accepted Answer

When two waves are out of phase, it means they are not in sync with each other in their cycle of peaks and troughs, essentially being "out of step" with one another. This does not necessarily relate to their wavelengths, amplitudes, or frequencies, but rather to their phase relationship.

To Say That One Wave Is Out of Phase with Another