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+// Example 6.35
+// Calculation of a) responsivity b)incident optical power
+// Page no 493
+
+clc;
+clear;
+close;
+
+//Given data
+n=0.6; // Quantum efficiency
+e=1.602*10^-19; // Charge of electron
+lambda=0.9*10^-6; // Wavelength
+h=6.626*10^-34; // Planck constant
+c=3*10^8; // Velocity of light
+I=2*10^-6; // Photocurrent
+
+// a)Responsivity
+R= (n*e*lambda)/(h*c);
+
+// b)Incident power
+P=I/R;
+P=P*10^6;
+
+
+//Displaying results in the command window
+printf("\n Responsivity(in A/W) = %0.3f ",R);
+printf("\n Incident power (in microwatt) = %0.3f ",P);
+
+// The answers vary due to round off error