The Einstein solid is made up of single-frequency quantum harmonic oscillators, ϵ = �?ω = h ν displaystyle epsilon =hbar omega =hnu The Reduce-off frequency might be decided from the Lower-off wavelength. Through the sampling theorem, we recognize that for wavelengths smaller than 2 a displaystyle 2a A not-for-revenue Group, https://www.pinterest.com/pin/1001488035878253855/