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Multiple choice
In an infinite square well the ground-state energy is
E
1
=
0.38
E_1 = 0.38
E
1
=
0.38
eV, and the levels scale as
E
n
=
n
2
⋅
E
1
E_n = n^2 \cdot E_1
E
n
=
n
2
⋅
E
1
. What is the energy of the
n
=
3
n=3
n
=
3
level,
E
3
E_3
E
3
, in eV?
2.28 eV
3.42 eV
0.38 eV
1.14 eV
Check answer