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// Scilab Code Ex5.6: Page-286 (2008)
clc; clear;
h = 6.62e-034; // Planck's constant, Js
c = 3e+008; // Speed of light, m/s
e = 1.6e-019; // Energy quivalent of 1 eV, J
phi = 2.28*e; // Work function for material, J
m = 9.1e-031; // Mass of an electron, kg
lambda = 3000e-010; // Wavelength of incident radiation, m
E = h*c/lambda; // Energy of the incidnt radiation, J
KE = E - phi; // Kinetic energy of the ejected photoelectrons, J
v = sqrt(2*KE/m); // Velocity of emitted electron, m/s
printf("\nThe velocity of the emitted electron = %4.2e m/s", v);
// Result
// The velocity of the emitted electron = 8.08e+005 m/s
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