The change that happens to the energy levels when the length of the box increased to 2 L .

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Chapter 28.10, Problem 28.9QQ

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The change that happens to the energy levels when the length of the box increased to 2L.

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A particle is in a box of length L. Suddenly, the length of the box is increased to 2L. What happens to the energy levels as shown? (a) nothing; they are unaffected. (b) They move farther apart. (c) They move closer together.

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