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May 19, 2020 10:30 am 30 pts
Q44. Suppose the frequency of phonons in a one-dimensional chain of atoms is proportional to the wave vector. If nis the number density of atoms and cis the speed of the phonons, then the Debye frequency is (a) 27cn (b)V27cn (c)3rcn (d)- TtCn 2
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