Infinite square-well potential

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Homework Statement


Consider an electron trapped in an infinite square-well potential. If the width of the well is equal to the position uncertainty, what would be the lowest energy level for this electron


Homework Equations





The Attempt at a Solution


I tried the equation for energy of a particle in a box but it requires the width and I don't know how to use the given fact that it is equal to the position uncertainty. Any help is greatly appreciated.
 

Answers and Replies

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vela
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The problem wants you to use the uncertainty principle to estimate the momentum of the particle and find its corresponding energy.
 

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