Question

b) Two energy levels of an atomic system are separated by energy corresponding to
frequency 3.0 × 1014 Hz. Assume that all atoms are in one or the other of these two
energy levels, compute the fraction of atoms in the upper energy level at temperature
400 K. Take kB = 1.38×10−23JK−1 and h = 6.6×10−34Js.

Answer 1

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