When a certain string is clamped at both ends, the lowest four resonant frequencies are measured to be 100, 150, 200, and 250 Hz.One of the resonant frequencies (below 200 Hz)is missing.What is it?
A)25 Hz
B)50 Hz
C)75 Hz
D)125 Hz
E)225 Hz

Question

Quizplus · Accepted Answer

The pattern of resonant frequencies suggests that they are multiples of 50 Hz (100, 150, 200, 250 Hz). The missing frequency below 200 Hz, which fits this pattern, is 50 Hz.

When a Certain String Is Clamped at Both Ends, the Lowest