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

Correct Answer: D. 1960Hz

Explanation

F₃ = 7F_o

= 7 x 280

= 1960Hz

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