An Organ Pipe Is Open at One End and Closed

An organ pipe is open at one end and closed at the other. The frequency of the third mode is 300 Hz higher than the frequency of the second mode. If the speed of sound is 345 m/s, then what is the length of the organ pipe?

A) 50.3 cm
B) 57.5 cm
C) 64.5 cm
D) 66.7 cm
E) 70.5 cm

Correct Answer:

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