Answered: Compute the cut-off frequency for a…

Compute the cut-off frequency for a linear monoatomic lattice it the velocity of sound and the interatomic spacing in the lattice 3 x 103 ms-1 and 3 x 10-1ºm ręspectively.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 147CP: Consider two wave functions y1(x,t)=Asin(kxt) and y2(x,t)=Asin(kx+t+) . What is the wave function...

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Concept explainers

Debye Theory of Solids

In solid-state physics, debye theory is used to estimate the phonons contributing to the specific heat capacity in a solid. It explains that the specific heat is a consequence of the vibrations of the atomic lattice of the solid, which is in contrast to the Einstein model. In the Einstein model, solids are treated as independent, non-interacting quantum harmonic oscillators. This model clearly explains the low-temperature dependence of the heat capacity, which is proportional to T3. This is known as Debye T3 law.

Question

Compute the cut-off frequency for a linear monoatomic lattice it
the velocity of sound and the interatomic spacing in the lattice
3 x 103 ms-1 and 3 x 10-10m ręspectively.
2.

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