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+// Scilab Code Ex2.12 Velocity of the emitted electron: Pg:49 (2008)
+m = 9.1e-031;    // Mass of electron, kg
+c = 3e+08;    // Speed of light, m/s
+e = 1.6e-019;    // Energy equivalent of 1 eV, joule/eV
+phi = 2.3*e;    // Work function of metal, J
+L = 4300e-010;    // Wavelength of incident light, m
+// As 1/2*m*v^2 = h*f - phi = h*c/L - phi, Einstein's photoelectric equation
+// Solving for v
+v = sqrt(2*(h*c/L - phi)/m);    // Velocity of emitted electron, m/s
+printf("\nThe velocity of emitted electron = %4.2e eV", v);
+// Result 
+// The velocity of emitted electron = 4.55e+005 eV 
+\ No newline at end of file