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Consider a monoatomic 1 D chain with nearest- neighbor interactions. Assume s spring constant K = 25 N/m, and atomic mass = 28 amu, and lattice spacing of 5 A. Calculated the sound velocity:

Consider a monoatomic 1 D chain with nearest- neighbor interactions. Assume s spring constant K = 25 N/m, and atomic mass = 28 amu, and lattice spacing of 5 A. Calculated the sound velocity:

Intro Spectroscopy
Intro Spectroscopy
5th Edition
ISBN:9781305221796
Author:PAVIA
Publisher:PAVIA
Chapter6: Nuclear Magnetic Resonance Spectroscopy Part Two: Carbon-13 Spectra, Including Heteronuclear Coupling With Other Nuclei
Section: Chapter Questions
Problem 20P
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QUESTION 28 Consider a monoatomic 1 D chain with nearest- neighbor interactions. Assume s spring constant K = 1 25 N/m, and atomic mass = 28 amu, and lattice spacing of 5 A. Calculated the sound velocity: A. 5 x 10-10 m/s B. 0.733 m/s C. 11594 m/s D. 17009 m/s QUESTION 29 Calculate the maximum possible phonon frequency (in question 30 above) A. The greater the band-gap width the less conductivity is the material B. The greater the band-gap width the more conductivity is the material C. The less the band-gap width the more insulating is the material D. The band gap width depends on the number of electrons QUESTION 30 The natural cut-off frequency oom for a one-dimensional periodic lattice with force constant K and mass M is: A. B. C. D. ما را به Si ***** 4M
Transcribed Image Text:QUESTION 28 Consider a monoatomic 1 D chain with nearest- neighbor interactions. Assume s spring constant K = 1 25 N/m, and atomic mass = 28 amu, and lattice spacing of 5 A. Calculated the sound velocity: A. 5 x 10-10 m/s B. 0.733 m/s C. 11594 m/s D. 17009 m/s QUESTION 29 Calculate the maximum possible phonon frequency (in question 30 above) A. The greater the band-gap width the less conductivity is the material B. The greater the band-gap width the more conductivity is the material C. The less the band-gap width the more insulating is the material D. The band gap width depends on the number of electrons QUESTION 30 The natural cut-off frequency oom for a one-dimensional periodic lattice with force constant K and mass M is: A. B. C. D. ما را به Si ***** 4M
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