Question

A transverse pulse generated at the bottom of a uniform rope of length l, travels in upward direction. the time taken by it to travel the full length of rope will be

Answer 1

For a transverse wave

n=2lv

v=μT

Where v= velocity of wave propagation 

T= tension of the string 

μ= linear density of the string.

v=Lmmg

=gx (where x=L)

therefore

v=gL

n=T1

where T=v2L

T=gL2l

=gL4L2

=g4L