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A wire having a linear mass density `5.0xx10^(-3) kg//m` is stretched between two rigid supports with a tension of `450N` . The wire resonates at a frequency of `420Hz`. The next higher frequency at which the same wire resonates is `480Hz`. The length of the wire is

A

`350 Hz`

B

`5 Hz`

C

`70 Hz`

D

`170 Hz`

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The correct Answer is:
C
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