Question: A vibrating tuning fork is held beside an open end of a tube that is 4 cm in diameter. At the other end of the

A vibrating tuning fork is held beside an open end of a tube that is 4 cm in diameter. At the other end of the tube is a moveable wall. As the wall is slowly moved away from the tuning fork, the first resonance is detected when the tube is 20 cm long. What is the amplitude of the standing wave created in the tube? A) The amplitude is not related to any of the data provided here. B) 40 cm C) 80 cm D) 2 cm

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