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# Problem 7.3: A time-dependent energy eigenfunction for a plane wave is shown

Please wait for the animation to completely load.

A wave function for a plane wave is shown in two different representations. Shown in the top graph is the amplitude and phase (as color) representation while in the bottom graph the real (blue) and imaginary (pink) components of the wave function are shown separately. **In the animation, ħ = 2m = 1.**

- In the top graph, what color corresponds to a positive and purely real value of the wave function?
- In the top graph, what color corresponds to a negative and purely real value of the wave function?
- In the top graph, what color corresponds to a positive and purely imaginary value of the wave function?
- In the top graph, what color corresponds to a negative and purely imaginary value of the wave function?

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