A stretched string is observed to vibrate in three equal segments when driven by a 480 Hz oscillator. What is the fundamental frequency of vibration for this string?
A) 480 Hz
B) 320 Hz
C) 160 Hz
D) 640 Hz
E) 240 Hz

Question

Quizplus · Accepted Answer

When a string is divided into three equal segments, the fundamental frequency is three times the frequency of the first harmonic. Therefore, the fundamental frequency of the string is 3 x 160 Hz = 480 Hz. Thus, the correct answer is (C).

A Stretched String Is Observed to Vibrate in Three Equal