1. The problem statement, all variables and given/known data A tube closed at one end and open at the other has a fundamental frequency of 242 Hz. What is the fundamental whenboth are open? 2. Relevant equations f (open and closed) = v/4L f (open) = v/2L v sound = 343 m/s 3. The attempt at a solution f1 (open and closed) = v/4L = 242Hz = 343/4L L = .354 m f (open) = v /2L = 343/ 2(.354m) = 484 Hz Does this look OK?