- #1
songoku
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- Homework Statement
- When a tuba played, the player makes a buzzing sound and blows into one end of a tube that has an effective length of 3.5 m. The other end of the tube is open. If speed of sound is 343 m/s, what is the lowest frequency of tuba?
a. 49 Hz
b. 12 Hz
c. 24 Hz
d. 8 Hz
e. 16 Hz
- Relevant Equations
- Open tube: f = nv / 2L
Closed tube: f = (2n-1)v / 4L
Is tuba open or closed tube? I google the picture of tuba and I think it is closed tube (one end open to air and one end put into mouth so it becomes closed end). Using formula of closed pipe, I get f = 24.5 Hz but the answer is 49 Hz which is obtained by using formula of open pipe.
How to determine whether an instrument is open or closed pipe?
Thanks
How to determine whether an instrument is open or closed pipe?
Thanks