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In a resonance tube experiment, the firs...

In a resonance tube experiment, the first resonance is obtained when the level of water in the tube is at 26cm from the open ened. Then the next resonance may be obtained , when the level of water will be

A

32cm

B

48cm

C

47cm

D

80cm

Text Solution

Verified by Experts

The correct Answer is:
D

`e=(l_2-3l_1)/(2) gt 0 therefore l_2 gt 3l_1`
`therefore l_2 gt 3xx26=78 " " l_2 gt 78` i.e. 80cm
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