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+//Page Number: 515
+//Example 9.25
+clc;
+//Given
+h=6.626D-34;
+c=3D+8; //m/s
+e=1.6D-19;
+Eg=1.85; //eV
+
+//Wavelenght emitted
+lam=(h*c)/(Eg*e);
+lamarm=lam*1D+10;
+disp('A',round(lamarm),'Wavelenght emitted:');