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Question
An open organ pipe of length L vibrates in its fundamental mode. The pressure variation is maximum
Options
at the two ends
at the middle of the pipe
at distance L/4 inside the ends
at distances L/8 inside the ends.
Solution
at the middle of the pipe
For an open organ pipe in fundamental mode, an anti-node is formed at the middle, where the amplitude of the wave is maximum. Hence, the pressure variation is also maximum at the middle.
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