AP® Physics 1 & 2

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Moderate

Resonant Frequencies in Open-Closed Pipe

APPH12-DJTUVR

Consider a pipe (open on one end, closed on the other) of length $1.5\text{ m}$. A sound wave ($v=340\text{ m/s}$) is directed down the tube. What are the first three resonant frequencies produced as a result of standing waves in the pipe?

A

$113.3\text{ Hz}$, $226.7\text{ Hz}$, $340\text{ Hz}$

B

$113.3\text{ Hz}$, $340\text{ Hz}$, $566.7\text{ Hz}$

C

$56.7\text{ Hz}$, $170\text{ Hz}$, $283.3\text{ Hz}$

D

$56.7\text{ Hz}$, $113.3\text{ Hz}$, $170\text{ Hz}$