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A somoneter wire resonates with a given ...

A somoneter wire resonates with a given tuning fork forming standing waves with five antindoes between the two bridges when a mass of 9 kg is suspended from the wire. Resonates with the same tuning fork forming three antindoes for the same postions of the bridges. the value of M is

A

25 kg

B

5 kg

C

12.5 kg

D

1/25 kg

Text Solution

Verified by Experts

The correct Answer is:
A
`f_(0) =(5)/(2l) sqrt((9g)/(mu)) = (3)/(2l) sqrt((Mg)/(mu)) rArr M =25 kg`.
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