In a resonance tube experiment, if the fundamental frequency of the vibrating air column is…

Physics JAMB 1998

In a resonance tube experiment, if the fundamental frequency of the vibrating air column is 280Hz, the frequency of the third overtone is

  • 70Hz
  • 840Hz
  • 1120Hz
  • 1960Hz checkmark

The correct answer is: D

Explanation

F3 = 7Fo

= 7 x 280

= 1960Hz
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