3769/CH23/EX23.20/Ex23_20.sce


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clear
//Given
l=1.4*10**-10                //m
h=6.63*10**-34
l1=2.0*10**-10
c=3*10**8                                           //m/s

//Calculation
E=h*c*(1/l-1/l1)

//Result
printf("\n Energy of the scattered electron is %0.2f *10**-16 J",E*10**16)