The longest pipe on a certain concert organ is 4.88 m long, 2.12 m wide, has walls of thickness 0.002 m, and is closed at one end. What is the wavelength (in m) of the fifth harmonic that resonates in this pipe at a temperature of 36.0 ? a. 2.44 b. 3.90 c. 4.88 d. 6.10 e. 19.52 Note : The answer is "b : 3.90". I don't understand how we got to this answer though.