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// Example 2.2
//computation of wavelenth of second emitted photon//
// Page no. 45
clc;
clear;
close;
//Given data
lambdaA=1400;//wavelength of absorbed photon//
lambdaB=1850;//wavelength of first emitted photon//
//Calculation for total energy of absorbed photon//
E=(12400/lambdaA);
//Calculation for energy of emitted photon of wavelenth lambdaB//
E1=(12400/lambdaB);
//Calculation for energy of second emitted photon//
E2=E-E1;
//Calculation for wavelenth of second emitted photon//
lambda2=(12400/E2);
//Displaying the result in command window
printf('\n Total energy of absorbed photon in eV = %0.3f eV',E);
printf('\n \n Energy of emitted photon of wavelength 1850 A = %0.3f eV',E1);
printf('\n \n Energy of the second emitted photon= %0.3f eV',E2);
printf('\n \n Wavelenth of second emitted photon = %0.0f A',lambda2);
//The answers vary due to roundoff error//
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