Answer Happy

Please answer problem #3 in Physics 4A.
2. In this lab, you will set up and hear standing waves in a vertical tube. We adjust the length of the tube by changing the water level (making the water level higher to shorten the tube length, and lower to lengthen it). If the wavelength of your sound wave is l = 1.0m, what is the shortest length of the tube that would allow for a standing wave in the tube? 3. Sketch the above shortest length of the tube that would allow for a standing wave in the tube, and continue the sketch for the next two shortest lengths of the tube. Give numerical value of the three shortest lengths of the tube (including answer to above Question 2) that allow for standing wave, and state their lengths in terms of wavelength 1.