Physics -- sound

posted by Please Help!!

An organ pipe that is closed at one end has a fundamental frequency of 146 Hz. There is a leak in the church roof, and some water gets into the bottom of the pipe, as shown in the Figure. The organist then finds that this organ pipe has a frequency of 273 Hz. What is the depth of the water in the pipe?

1. bobpursley

length of pipe:1/4 wavelength=1/4 speedsound/frequency

have fun calculating.

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