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An organ pipe open at one end and closer...

An organ pipe open at one end and closer at other has a length L. the wavelength of the three lowest resonating frequencies that can be produced by this pipe are

A

4L, 2L, L

B

2L, L, L/2

C

2L, L, 2L/3

D

4L, 4L/3, 4L/5

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The correct Answer is:
D
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