Question

A uniform rope of length L and mass m₁, hangs vertically from a rigid support. A block of mass m₂ isattached to the free end of the rope. A transverse pulse of wavelength ${\lambda }_1$ is produced at the lower end ofthe rope. The wavelength of the pulse when it reaches the top of the rope is ${\lambda }_2$. The ratio ${\lambda }_2/{\lambda }_1$ is: