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Unformatted text preview: = ck , show that photon energy density in a cavity is U V = " 2 15 h 3 c 3 (k B T) 4 and hence a photon specific heat of C v V = 4 " 2 k B 4 15 h 3 c 3 # $ % % & ( ( T 3 b) Consider a dielectric solid with a Debye temperature equal to 100 K and with 10 22 atoms/cm 3 . Estimate the temperature at which the photon contribution to the heat capacity would be equal to the phonon contribution evaluated at 1 K . (25) 4. ISSP, Ch. 6, Problem 1: Kinetic energy of electron gas....
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This note was uploaded on 08/01/2008 for the course PHYSICS 141A taught by Professor Souza during the Spring '08 term at University of California, Berkeley.
 Spring '08
 SOUZA
 Solid State Physics, Heat

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