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A uniform string of length 20 m & mass 1...

A uniform string of length 20 m & mass 1 kg is hung vertically. Find the speed of wave at the mid point of the string :

A

`20 m//s`

B

`30 m//s`

C

`10 sqrt(2) m//s`

D

`10 m//s`

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The correct Answer is:
D
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