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A system has two energy levels with energies E and 2E...

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Thermodynamics and Statistical Physics
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A system has two energy levels with energies E and 2E. The lower level is four-fold degenerate while the upper level is doubly degenerate. If there are N non-interacting classical particles in the system, which is in thermodynamic equilibrium at temperature T, the fraction of particles in the upper level is

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Correct Answer: Option A
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