A uniform rope of length 10 m and mass 15 kg hangs vertically from a rigid support. A block of mass 5 kg is attached to the free end of the rope. If a transverse pulse of wavelength 0.04 m is produced at the lower end of the rope, the wavelength of the pulse when it reaches the top of the rope will be
1
0.02 m
2
0.04 m
3
0.08 m
4
0.16 m