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A wire having a lineat density of 0.05 g...

A wire having a lineat density of 0.05 gm/ cc is stretched between two rigid supports with a tension of `4.5 xx 10^(7)` dynes. It is observed that the wire resonates at a frequency of 420 cycles /sec. the next resonation frequency at which the same wire resonates is 490 cycels / sec . the length of wire is approximately.

A

`350 Hz`

B

`5 Hz`

C

`70 Hz`

D

`170 Hz`

Text Solution

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The correct Answer is:
C
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