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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
  • A. 70Hz
  • B. 840Hz
  • C. 1120Hz
  • D. 1960Hz
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Correct Answer: Option D
Explanation
F3 = 7Fo

= 7 x 280

= 1960Hz
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