A pipe of length L that is closed at one end and open at the other end is resonating at its fundamental frequency.Which statement about the sound is correct?
A)The wavelength is 4L and there is a displacement node at the pipe's open end.
B)The wavelength is 4L and there is a displacement antinode at the pipe's open end.
C)The wavelength is L and there is a displacement node at the pipe's open end.
D)The wavelength is L and there is a displacement antinode at the pipe's open end.

Question

Quizplus · Accepted Answer

For a pipe that is closed at one end and open at the other, the fundamental frequency corresponds to a quarter wavelength fitting into the length of the pipe, making the wavelength 4L. At the open end, there is a displacement antinode due to the air being able to move freely.

A Pipe of Length L That Is Closed at One