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What are the three longest wavelengths for standing sound waves in a 124-cm-long tube that is (a) open at both ends and (b) ope...Asked by Jasmine
What are the three longest wavelengths for standing sound waves in a 124-cm-long tube that is (a) open at both ends and (b) open at one end, closed at the other?
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Answered by
drwls
For a tube open at one end, as in (b), there must be an odd number of quarter-wavelengths, if standing waves are to occur. See
http://www.tutorvista.com/content/physics/physics-iii/waves/vibrations-in-pipes.php
For a tube open at both ends, as in (a), there must be an even number of quarter-wavelengths.
http://www.tutorvista.com/content/physics/physics-iii/waves/vibrations-in-pipes.php
For a tube open at both ends, as in (a), there must be an even number of quarter-wavelengths.
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