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clc//
//
//
//Variable declaration
E=1.5*9.1*10^-31; //energy(joule)
m=1.676*10^-27; //mass(kg)
h=6.62*10^-34; //planck's constant
//Calculation
v=sqrt(2*E/m);
lamda=h/(m*v); //wavelength(m)
//Result
printf("\n wavelength is %0.3f *10^-6 m",lamda*10^6)
printf("\n answer varies due to rounding off errors")
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