An organ pipe is 1.40 m long. It can be played with both ends open, which supports standing waves that have antinodes at each end. It can also be played with only one end open, which supports standing waves that have an antinodes at the open end, and a node at the closed end.

a) For the pipe that is open at both ends, obtain the wavelengths of two largest possible waves whose antinodes can fit the pipe. Obtain first and second wavelength.

b) For the pipe that is closed at one end and open at the other, obtain the wavelengths of two largest possible waves whose antinodes can fit the pipe. Obtain first and second wavelength.