An open pipe of length L is resonating at its fundamental
frequency. Which statement is correct?
1) The wavelength is L and there is a node at the pipe's
midpoint.
2) The wavelength is 2L and there is an antinode at the pipe's
midpoint.
3) The wavelength is 2L and there is a node at the pipe's
midpoint
4) the wavelength is L and there is an antinode at the pipe's
midpoint