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In rsonace column experiment with a clos...

In rsonace column experiment with a closed pipe, the first, second and third resonance lengths `l_1`,`l_2`,`l_3` respectively bear the relationship

A

`l_3=2l_2=4l_1`

B

`(l_3-l_2)=(l_2-l_1)`

C

`l_3=5/3l_2=5l_1`

D

`(l_3-l_2)=2(l_2-l_1)`

Text Solution

Verified by Experts

The correct Answer is:
B
The general fromula for the resonance length of a closed air column ,`L_n=(2n-1)lambda/4`
`l_1=(2xx1-1)lambda/4=lambda/4`
`l_2=(2xx2-1)lambda/4=(3lambda)/4`
`l_3=(2xx3-1)lambda/4=(5lambda)/4`
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