  Time-dependent Schroedinger equation represents the basis of any
quantum-theoretical approach. The question concerning its proper content in
comparison to the classical physics has not been, however, fully answered until
now. It will be shown that there is one-to-one physical correspondence between
basic solutions (represented always by one Hamiltonian eigenfunction only) and
classical ones, as the non-zero quantum potential has not any physical sense,
representing only the "numerical" difference between Hamilton principal
function and the phase of corresponding wave function in the case of
non-inertial motion. Possible interpretation of superposition solutions will be
then discussed in the light of this fact. And also different interpretation
alternatives of the quantum-mechanical model will be newly analyzed and new
attitude to them will be reasoned.
