46. 47. . How does the tunneling probability depend on thickness and height of a barrier? . What is the physical consequence if two operators commutate? Of which factors does the wavefunction of the electron of a hydrogen atom consist? . On which spherical coordinates and on which quantum numbers do these factors depend? For what quantum number do the electrons have a non-vanishing probability to be at the position of the nucleus? For the quantum description of the hydrogen atom, in which quantum numbers does the energy depend on