(e) Show that at time t = 4ma² /nħ, the wavefunction returns to its initial state. (f) Suppose the well was somehow expanded to double the length, keeping the centre un- changed, without perturbing the wavefunction of the particle. Now, if you measured the energy, what possible values could you obtain and with what probabilities?
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It is required to solve parts e and f as per the request.
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