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+// Scilab Code Ex2.3 Energy of photoelectrons: Pg:45 (2008)
+h = 6.6e-034;    // Planck's constant, Js
+c = 3e+08;    // Speed of light, m/s
+e = 1.6e-019;    // Energy equivalent of 1 joule, joule/eV
+L = 1800e-010;    // Wavelength of incident light, m
+L0 = 2300e-010;    // Threshold wavelength of tungsten, m
+E = h*c*(1/L - 1/L0);    // Energy of photoelectrons emitted from tungsten, joule
+printf("\nThe energy of photoelectrons emitted from tungsten = %3.1f eV", E/e);
+// Result 
+// The energy of photoelectrons emitted from tungsten = 1.5 eV 
+\ No newline at end of file