QUESTION 28Consider a monoatomic 1 D chain with nearest- neighbor interactions. Assume s spring constant K =125 N/m, and atomic mass = 28 amu, and lattice spacing of 5 A. Calculated the sound velocity:A. 5 x 10-10 m/sB. 0.733 m/sC. 11594 m/sD. 17009 m/sQUESTION 29Calculate the maximum possible phonon frequency (in question 30 above)A. The greater the band-gap width the less conductivity is the materialB. The greater the band-gap width the more conductivity is the materialC. The less the band-gap width the more insulating is the materialD. The band gap width depends on the number of electronsQUESTION 30The natural cut-off frequency oom for a one-dimensional periodic lattice with force constant K andmass M is:A.B.C.D.ما را بهSi*****4M

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Answered: Consider a monoatomic 1 D chain with…

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:

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Author:Raymond A. Serway, Chris Vuille

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Chapter1: Units, Trigonometry. And Vectors

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