A standing wave:
A)can be constructed from two similar waves traveling in opposite directions
B)must be transverse
C)must be longitudinal
D)has motionless points that are closer than half a wavelength
E)has a wave velocity that differs by a factor of two from what it would be for a traveling wave

Question

Quizplus · Accepted Answer

A standing wave is created by the interference of two waves of the same frequency traveling in opposite directions. The waves must be transverse, as longitudinal waves do not have the necessary motionless points. Additionally, the motionless points, called nodes, are spaced exactly half a wavelength apart, not closer than half a wavelength. Finally, the wave velocity of a standing wave is the same as that of a traveling wave with the same frequency and wavelength, so it does not differ by a factor of two.

A Standing Wave