A Pipe of Length L That Is Closed at One

Multiple Choice

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 L and there is a displacement node at the pipe's open end.
B) The wavelength is 4L and there is a displacement node at the pipe's open end.
C) The wavelength is 4L and there is a displacement antinode at the pipe's open end.
D) The wavelength is L and there is a displacement antinode at the pipe's open end.