pipe A, open at both ends and 1.20 m long, oscillates at its third harmonic. the tube is filled with air for which the speed of sound is 343 m/s. A pipe B closed at one end oscillates on its first overtone (the next harmonic after the fundamental). The frequency of B coincides with the frequency of A. a)find the length of pipe B b) How many displacement nodes are present in pipe B? c) Assume an x-axis along pipe B, with x = 0 at the closed end. In what position are the first two nodes located? d) Draw the normal mode in which pipe A and pipe B oscillate (draw only the mode indicated in the problem, do not draw all possible modes). e) What is the fundamental frequency of pipe A and pipe B?

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.