Pipe A, which is 1.50 m long and open at both ends,
oscillates at its third lowest harmonic frequency. It is filled
with air for which the speed of sound is 343 m/s. Pipe B,
which is closed at one end, oscillates at its second lowest
harmonic frequency. This frequency of B happens to match the
frequency of A. An x axis extends along the
interior of B, with x = 0 at the closed end.
(a) How many nodes are along that axis? What are
the (b) smallest and (c) second
smallest value of x locating those nodes? (d) What
is the fundamental frequency of B?
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