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Unformatted text preview: upper state of energy ! to the probability of being in the lower state of energy 0 at high temperatures (kb)T >> ! . Determine the average energy of a two level system at high T. 3) (10 pts) Imagine that an atom has exactly two energy levels whose energy difference is 0.015 eV. At what temperature will there be two atoms in the higher state for every three in the lower state? 4) (10 pts) Consider the average energy of a harmonic oscillator relative to its lowest level. Let the energy level spacing be ! and k B be Boltzmann's constant. For a given temperature T, what is the approximate ratio of ! /(k B T) that produces an average energy of approximately 0.6(kb)T?...
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- Spring '08