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In a resonance column, first and second ...

In a resonance column, first and second resonance are obtained at depths 22.7 cm and 70.2 cm. The third resonance will be obtained at a depth

A

`117.7cm`

B

`92.9cm`

C

`115.5cm`

D

`113.5cm`

Text Solution

Verified by Experts

The correct Answer is:
A
`impliesl_(3)=2l_(2)-l_(1)`
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