Energy Eigenfunction 1 | Energy Eigenfunction 2 | Energy Eigenfunction 3 | Energy Eigenfunction 4

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These animations show three time-dependent energy eigenfunctions in color-as-phase representation.  Assume x is measured in cm and time is measured in seconds.

Assume Energy Eigenfunction 1 is correct for a particle of mass m.  Which of the other functions could be valid free-particle time-dependent energy eigenfunctions for this same particle?