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// Scilab Code Ex1.18: Page-1.19 (2009)
clc; clear;
m = 9.1e-031; // Mass of the electron, kg
Ek = 1.27e-017; // Kinetic energy of electron, J
h = 6.6e-034; // Planck's constant
lambda = h/sqrt(2*m*Ek); // de-Broglie wavelength of electron, m
printf("\nThe wavelength associated with moving electron = %4.2f angstrom", lambda/1e-010);
// Result
// The wavelength associated with moving electron = 1.37 angstrom
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