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A uniform wire of length 20 m and weighi...

A uniform wire of length 20 m and weighing 5 kg hangs vertically. If `g=10 m s^(-2)`, then the speed of transverse waves in the middle of the wire is

A

`10 m s^(-1)`

B

`10sqrt2 m s^(-1)`

C

`4 m s^(-1)`

D

`2 m s^(-1)`

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A
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