(a)[2]
Describe how the particles of the string move.
(b)[1]
Determine the wavelength of the wave.
(c(i))[2]
The wave speed is $2.0\,\text{m s}^{-1}$. Calculate the frequency of the wave.
(c(ii))[1]
On Fig. 4.1, draw the string for a time $0.10\,\text{s}$ later than the time shown in Fig. 4.1.