I\'m finishing up a lab and I don\'t know how to answer thisfinal question! The

Question

I'm finishing up a lab and I don't know how to answer thisfinal question! The node of a standing wave in an open-closed end tubeactually sticks out of the open end a little. 1. Why is this not a problem measuring in a closed-opentube? 2. Why is it a problem measuring in an open-opentube. I'm finishing up a lab and I don't know how to answer thisfinal question! The node of a standing wave in an open-closed end tubeactually sticks out of the open end a little. 1. Why is this not a problem measuring in a closed-opentube? 2. Why is it a problem measuring in an open-opentube.

Explanation / Answer

It is not a problem ina tube closed at both endssuch as a Kundt's tube. For a tube open at one end a correction of about .6 of thetube radius is added to the measured length because the disturbance creating the wave is not exactly atthe end of the tube.

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