Four standing wave segments,or loops,are observed on a string fixed at both ends as it vibrates at a frequency of 240 Hz.What is the fundamental frequency of the string?
A)23 Hz
B)28 Hz
C)35 Hz
D)60 Hz
E)80 Hz

Question

Quizplus · Accepted Answer

The fundamental frequency is found by dividing the given frequency by the number of loops (n = 4 in this case). Since 240 Hz represents the fourth harmonic (n=4), the fundamental frequency (first harmonic) is 240 Hz / 4 = 60 Hz.

Four Standing Wave Segments,or Loops,are Observed on a String Fixed