In a One-Dimensional System, a Standing Wave Is the Result

Multiple Choice

In a one-dimensional system, a standing wave is the result of ________

A) two equal amplitude, equal wavelength waves traveling in the same direction.
B) two waves of different amplitude, but equal wavelength traveling in the same direction.
C) two waves of different frequency, but equal amplitude traveling in the same direction.
D) two waves of different frequency, but equal amplitude traveling in opposite directions.
E) two equal amplitude, equal wavelength waves traveling in opposite directions.