If the walls of a potential energy well have finite height, V0, the wave function that describes the particle inside the box does not vanish on the walls, but continues through the barrier power. Discuss, only conceptually, the diagrams drawn below for the three first energy levels. It is not to make a treatise about it, especially copied from books. It's simply to explain how much you understand about the concepts linked to graphics below.

If the walls of a potential energy well have finite height, V0, the wave function that describes the particle inside the box does not vanish on the walls, but continues through the barrier power. Discuss, only conceptually, the diagrams drawn below for the three first energy levels. It is not to make a treatise about it, especially copied from books. It's simply to explain how much you understand about the concepts linked to graphics below.