Which One of the Following Statements Is True Concerning the Points

Multiple Choice

Which one of the following statements is true concerning the points on a string that sustain a standing wave pattern?

A) All points vibrate with the same energy.
B) All points undergo the same displacements.
C) All points vibrate with different frequencies.
D) All points vibrate with different amplitudes.
E) All points undergo motion that is purely longitudinal.