Pipe A , which is 1.20 m long and open at both ends, oscillates at its third low
ID: 2253302 • Letter: P
Question
Pipe A, which is 1.20 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?
Explanation / Answer
the nodes will be at 0.2, 0.6 and 1.0 m, respectively.