- #1
aliaze1
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Homework Statement
A narrow column of air is found to have standing waves at frequencies of 390 Hz, 520 Hz, and 650 Hz and at no frequencies in between these. The behavior of the tube at frequencies less than 390 Hz or greater than 650 Hz is not known.
How long is the tube?
Homework Equations
f = m(v/(2L)) = mf
m = 1,2,3,4...
The Attempt at a Solution
I keep getting .4358 or .4410 (depending on if I use 344 or 340 for the speed of sound, respectivly)