Name Date CRN GTA Name Lab 3: A Look at Sound PHYS 2306 Pre-Lab Assignment Question Pre-1: You snap your fingers at the open end of a 1-meter long tube that is closed at the other end. With a microphone at the open end, you determine that there is 5.Ams between the time you snap your fingers and the time when the microphone detects the echo. Based on this information, calculate thespeed of sound in air. Question Pre-2: You are studying standing sound waves in an organ pipe of length L with both ends open a) What wavelengths of sound can exist as standing waves in this pipe? Express your answer in terms of the length L 37 Lab 3: A Look at Soundbj Assume that the length of the organ pipe is I. = 24 cm. You have excited a standing sound wave in the tube, and you observe that it has displacement nodes at 4 cm, 12 cm, and 20 cm measured from one end of the pipe. In which harmonic, n, is the air in the pipe oscillating? c) What is the frequency of the musical tone produced by the organ pipe in the situation described in part b?Question Pre-3: You are studying standing sound waves in an organ pipe of length L with one end open and one end closed. a) What wavelengths of sound can exist as standing waves in this pipe? Express your answer in terms of the length L. b) Assume that the length of the organpipe is L. = 20 cm. You have excited a standing sound wave in the tube, and you observe that it has displacement nodes at Ocm, 8 cm, and 16 cm measured from the closed end of the pipe. In which harmonic, n, is the air in the pipe oscillating? c) What is the frequency of the musical tone produced by the organ pipe in the situation described in part b