a 50 cm long wire with mass of 1.0 gram and a tension of 440 N passes across the

Question

a 50 cm long wire with mass of 1.0 gram and a tension of 440 N passes across the open end of an open closed tube that is full of water. the tube is initially 1 m long and the water is slowly drained from the bottom. the wire, which is fixed at both ends, is bowed at the center so as to vibrate at its fundamental frequency and generate a sound wave. at what water heights, measured from the bottom of the tube will standing waves exist in the tube above the water? ( assume speed of sound in air 340 m/s)

Explanation / Answer

1.75 m

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