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A string of length L is stretched by L//...

A string of length L is stretched by `L//20` and speed transverse wave alon it is v. The speed of wave ehen it is stretched by `L//10` will be (assume that Hooke law is applicable)

A

`2v`

B

`(v)/(sqrt(2))`

C

`sqrt(2)v`

D

`4v`

Text Solution

Verified by Experts

The correct Answer is:
C
`v prop sqrt(T)` and `T prop Deltalimplies(v_(1))/(v_(2))=sqrt((L//10)/(L//20))`
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