Below is an open-open pipe. The length of the pipe is n2 meters.
You place a tuning fork of frequency n1 Hz at one end of the pipe. At this frequency,
standing waves are produced and you hear a loud tone. What are the number
of displacement nodes within the pipe? If the number of displacement nodes
is n3, what is n3? Note that n1 has units of Hz,
n2 has units of meters. Take the speed of sound to be 340 m/s.
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