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A 5.5 meter long string has a mass of 0....

A 5.5 meter long string has a mass of `0.03.5 kg` . If the tension in the string is 77 N, the speed of a wave on the string is :

A

`165 ms^(-1)`

B

`102 ms^(-1)`

C

`110 ms^(-1)`

D

`77 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
`m=(0.035)/(5.5) kg//m, T=77 N`
`v= sqrt((T)/(m))`
`= sqrt((77xx5.5)/(0.035))=110 m//s`
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