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5:06 AM
@Hema the bottom of the tube must be at a node in the sound wave. That is, the amplitude of the wave must be zero there because the wave can't move when there's a solid surface in the way.
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1 hour later…
6:18 AM
@SmokeDetector k test
@SmokeDetector test2
@SmokeDetector test3
@SmokeDetector n test4
 
@angussidney That message is not a report.
 
@SmokeDetector test5
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7 hours later…
1:04 PM
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