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## Homework Statement

It can be shown that the allowed energies of a particle of mass m in a two dimensional square box of side L are

E =h

^{2}(n

^{2}+m

^{2})/8mL

^{2}

The energy depends on two quantum numbers, n and m, both of which must have an integer value 1, 2, 3...

What is the minumum energy for a particle in a two dimensional quare box of side L?

What are the five lowest allowed energies (give as multiples of E

_{minimum})?

## Homework Equations

given above

## The Attempt at a Solution

no idea, substitute 1 for n and m? that's my only thought

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