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Homework Statement
A long tube that is open at both ends is used to construct a musical instrument. The sound waves that enter the tube are generated by a taut wire with a tension of 600 N and a linear mass density of 0.031 kg/m.
If the length of the tube is 2.4 m and a hole is cut in the side of the tube at 0.8 m, what is the fundamental resonant frequency of the new system? A) 214 Hz B) 107 Hz C) 71 Hz D) 143 Hz E) 321 Hz
Homework Equations
λ= v/2L
The Attempt at a Solution
I broke the pipe up into two pieces and found that the frequencies of the 1.6 m tube and the 0.8m tube are 107Hz and 214Hz, respectively. These are both answers available. If I add these together, I also get a third answer. Which is correct?