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+// Example no.5.3
+// To find quantum efficiency at different wavelength and same responsivity
+// Page no.199
+
+clc;
+clear;
+
+// Given data
+lambda1=0.7;                                         // The radiation wavelength in micrometer
+R=0.4;                                               // The responsivity in A/W
+lambda2=0.5;                                         // The reduced wavelength in micrometer
+neta1=(R*1.24)/lambda1;                              // The quantum efficiency for 0.7micrometer wavelength
+neta2=neta1*(lambda2/lambda1);                       // The quantum efficiency for reduced wavelength 0.5micrometer 
+
+// Display result on command window
+printf('\n The quantum efficiency for 0.7 micrometer wavelength = %0.4f',neta1)
+printf('\n The quantum efficiency for reduced wavelength of 0.5 micrometer = %0.3f',neta2)