1.

A string is hanging from a rigid support. A transverse pulse is excited at its free end. The speed at which the pulse travels a distance x is proportional toA. xB. `1/x`C. `1/sqrt(x)`D. `sqrt(x)`

Answer» Correct Answer - d
Speed of transverse pulse, `v=sqrt(T/mu)`
where, `mu` is mass of string per unit length.
For a transverse pulse, `T=muxg`
`therefore v=sqrt((muxg)/mu)rArr v prop sqrt(x)`


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