An Electron Is Confined in a Two-Dimensional Box Where U(x,y)=

question 27

Multiple Choice

An electron is confined in a two-dimensional box where U(x,y) = 0 for x = 0 to L and y = 0 to 3L,and U(x,y) = infinity outside these boundaries.If L = 0.5 nm,then calculate the energy of the first excited state.

• A)1.7 eV
• B)2.2 eV
• C)6.2 eV
• D)3.0 eV
• E)None of these is correct.

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