## Problem 15.3

*Please wait for the animation to completely load.*

The graph shown represents the probability of occupation for an
electron in a substance with a uniform density of states (unlike a metal where
the density of states is proportional to *E*^{1/2}). This function can be plotted for
several different temperatures. The integral shown is normalized and represents
the probability of finding electrons of a certain energy range. What percentage
of the electrons are within 10% of the Fermi energy at the various temperatures?
Explain. Restart.