# Answer to Question #51559 in Solid State Physics for JUGNU

Question #51559

Show that for a square lattice in two dimensions the kinetic energy of a free electron at a

corner of the first Brillouin zone is higher than that of an electron at the midpoint of a

side face of the zone by a factor of 2.

corner of the first Brillouin zone is higher than that of an electron at the midpoint of a

side face of the zone by a factor of 2.

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