A student vibrates the end of a horizontal rope and sends a wave along the rope. The wave is shown in the diagram.
What is the amplitude of the wave, and what is the wavelength of the wave?

1 )
amplitude/ cm: 5.0 / wavelength/ cm: 10
amplitude/ cm: 5.0 / wavelength/ cm: 20
3 )
amplitude/ cm: 10 / wavelength/ cm: 10
4 )
amplitude/ cm: 10 / wavelength/ cm: 20
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