Waves

A uniform rope of length \(12 \mathrm{~m}\) and mass \(6 \mathrm{~kg}\) hangs vertically from the rigid support. A block of mass \(2 \mathrm{~kg}\) is attached to the free end of the rope. A transverse pulse of wavelength \(0.06 \mathrm{~m}\) is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is