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 atone end, oscillates at its second lowest harmonic frequency. Thisfrequency 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?