Questions
Question 1
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State the energy levels for a particle in a rectangular three-dimensional box.
Question 2
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What values can \(n_x\), \(n_y\), and \(n_z\) take in a three-dimensional infinite box?
Question 3
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State the cubic-box energy levels in terms of \(E_0=h^2/(8mL^2)\).
Question 4
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What is the ground-state quantum-number triple for a particle in a three-dimensional box?
Question 5
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For a cubic box, find the ground-state energy in units of \(E_0\).
Question 6
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For a cubic box, find \(E_{211}\) in units of \(E_0\).
Question 7
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How many states are degenerate with \((2,1,1)\) in a cubic box?
Question 8
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For a cubic box, find the energy of \((2,2,1)\) in units of \(E_0\).
Question 9
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How many states are degenerate with \((2,2,1)\) in a cubic box?
Question 10
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For a cubic box, compare \(E_{111}\) and \(E_{211}\).
Question 11
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Why is \((0,1,1)\) not an allowed state in an infinite three-dimensional box?
Question 12
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What happens to the energy levels if all box side lengths are doubled?
Question 13
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For a rectangular box with \(L_x=2L\), \(L_y=L\), and \(L_z=L\), write the energy in units of \(h^2/(8mL^2)\).
Question 14
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Why does a cubic box have degeneracies that a rectangular box may not have?
Question 15
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For a cubic box, list all states with energy \(6E_0\).
Question 16
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For a cubic box, list all states with energy \(11E_0\).
Question 17
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Why is the ground-state energy nonzero in a three-dimensional infinite box?
Question 18
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What is the normalized wave function for the ground state in a cubic box from 0 to \(L\) in each direction?
Question 19
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How does increasing mass affect all box energy levels?
Question 20
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Derive the cubic-box energy expression from the three rectangular-box terms.