(b) Figure 2 below shows a particle traveling in the +x direction from the ' X direction with E ......................................................... E Incident wave __+ V = 0 x = 0 (i) Write the wave solutions for regions x0. [4 marks] (ii) Assume that the incident and reected velocities are similar. Show that the reected coefcient is given by (ki- Jeff +4kk _ of H93)" Where k] a]? and k2 : [w Give your comment on the result. [8 marks] R = l