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A string is hanging from a rigid support...

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 to

A

x

B

`(1)/(x)`

C

`(1)/(sqrt(x))`

D

`sqrt(x)`

Text Solution

Verified by Experts

The correct Answer is:
D

Mass per unit length = `(M)/(L)`
`T=((M)/(L))xg`
velocity `v=sqrt((T)/(mu))`
`implies v=sqrt((Mgx//L)/(M//L))=sqrt(gx)`
`impliesvpropsqrt(x)`.
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