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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

Text Solution

Verified by Experts

The correct Answer is:
D
`L=(2n-1) (lambda)/4`
`lambda=(4L)/((2n-1)), lambda_(1)=(4L)/(2(1)-1)=4L`
`lambda_(2)=(4L)/(4-1) =(4L)/3` , `lambda_(3)=(4L)/(6-1) =(4L)/5`
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RESONANCE ENGLISH-SOUND WAVES-Exercise- 3 PART - I
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