Hello guys, problem is as follows: X9) A free electron has energy (kinetic) 10 eV and moves along the positive x-axis. a) Determine the electron's wave function. b) The electron reaches a potential step,-V0. Determine V0(expressed in eV), so that the probability of reflectance is 25%. c) What is the reflection coefficient of the potential step instead is + V0 but with the same V0? 2. Relevant equations ψ(x,t)=Cexp(i(kx-ωt)) 3. The attempt at a solution Equation above should do (with estimating the constant C) with the first paragraph, however I have problems with normalisation of this function, since there are no boundaries for the particle.