Q76 · CSIR-NET Chemistry, June 2014

Paper: CSIR-NET June 2014 · Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Quantum Chemistry – General · Marks: 2 · Difficulty: Medium

Consider a particle confined in a cubic box. The degeneracy of the level, that has an energy twice that of the lowest level, is

(a)3

(b)1

(c)2

(d)4

Answer

Answer: A ✓ checked by 4AB · confidence high

The source book printed no answer; this one was worked out and checked — see the explanation.

Explanation

E ∝ n_x² + n_y² + n_z²; twice the ground value 3 is 6 = (1,1,2) and permutations: degeneracy 3.

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