A so that phonon absorption does not occur b so that

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Unformatted text preview: o one over the square root of the density. c) The sound velocity is proportional to the density. d) The sound velocity is proportional to one over the density.. e) The sound velocity is independent of the density. 2) If the change in momentum from the initial state for which the magnitude of crystal momentum is p = k to the scattered state with p′ = k ′ is β , what type...
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This document was uploaded on 01/15/2014.

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