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A wire under certain tension is in unison with a tuning fork when tension in the wire is increased by 2%, 3 beats/second are produced. Find the freque

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A wire under certain tension is in unison with a tuning fork when tension in the wire is increased by 2%, 3 beats/second are produced. Find the frequency of tuning fork.
A. 300Hz
B. 297Hz
C. 303Hz
D. 306Hz
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Correct Answer - A
`(Deltan)/(n) = 1/2 (DeltaT)/(T)`
`3/n = 1/2 xx2/100 therefore n_1=300`
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