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Two instruments having stretched strings...

Two instruments having stretched strings are being played in unison . When the tension in one of the instruments is increases by ` 1% , 3` beats are produced in ` 2 s`. The initial frequency of vibration of each wire is

A

`600Hz`

B

`300Hz`

C

`200Hz`

D

`150Hz`

Text Solution

Verified by Experts

The correct Answer is:
B
`n prop sqrt(T)implies(Deltan)/(n)=(1)/(2)(DeltaT)/(T)implies(1.5)/(n)=(1)/(2)xx(1)/(100)`
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