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In a resonance tube experiment, the firs...

In a resonance tube experiment, the first and second resonace occur, when the water levels in the tube are 25 cm and 80 cms below the open end respectively . What is the inner diameter of the resonance tube ?

A

`10/3` cm

B

`20/3` cm

C

`25/3` cm

D

`40/3` cm

Text Solution

Verified by Experts

The correct Answer is:
C

`e = (80 - 75)/2 = 5/2 ` cm
` :. 3/10 D = 5/2 :. D = 50/6 = 25/3 ` cm
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