posted by Physics Help! .
An organ pipe that is closed at one end has a fundamental frequency of 122 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 300 Hz. What is the depth of the water in the pipe?
I can figure out the length of the pipe by 122Hz=(343m/s)/2L which gives a pipe length of 1.4m but how do you figure out how deep the water is?