A string with mass density equal to 0.0025 kg/m is fixed at both ends and at a tension of 290 N.Resonant frequencies are found at 558 Hz and the next one at 744 Hz.To what harmonic does the 558 Hz resonance correspond?
A)1
B)2
C)3
D)4
E)5

Question

Quizplus · Accepted Answer

The difference between consecutive resonant frequencies is the fundamental frequency. The difference between 744 Hz and 558 Hz is 186 Hz, which is the fundamental frequency. The 558 Hz resonance is the third harmonic (558 Hz / 186 Hz = 3).

A String with Mass Density Equal to 0