1. Consider the following barrier problem with the particles arriving from the right (from Region II): EZ Uo Uo V 0 II E > Uo, i.e. both regions are "classical". This problem is similar to the above-barrier reflection problem we considered in Week 9. except that the particles encounter a step down in the potential energy instead of a step up. (a) What is the general form of the wavefunction in Regions I and II that satisfies the stationary Schroedinger equation in the respective regions? (b) Write down the equations describing the boundary conditions at the step. Show how the general boundary conditions translate into equations for the wavefunction coefficients. (c) Solve the equations obtained in (b) and show the specific solution for the stationary wavefunction in Regions I and