Square Wells/Particle in a Box - GRE Subject Test: Physics

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Question

If a ground state particle is in a one-dimension square well, where is the probability of finding the particle equal to zero?

Answer

This is a fundamental concept question. For a ground state particle, the only place where the probability is equal to zero is at the boundary because the particle cannot be found there. He has to be in the box (not unlike a cat).

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