1.

A wire of variable mass per unit length mu = mu_(0)xis hanging from the ceiling as shown in figure. The length of wire is l_(0) . A small transverse disturbance is produced at its lower end. Find the time after which the disturbance will reach to the other ends.

Answer»

`sqrt((6l_(0))/G)`
`sqrt((8l_(0))/g)`
`sqrt((9l_(0))/g)`
`sqrt((10l_(0))/g)`

Answer :B


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