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clear
//
//
//
//Variable declaration
e=1.6*10^-19; //charge(coulomb)
c=3*10^8; //velocity of matter wave(m/s)
h=6.62*10^-34; //plank's constant(Js)
lamda=6328*10^-10; //wavelength(m)
//Calculation
E=h*c/(lamda*e); //energy of photon(eV)
p=h/lamda; //momentum of photon(kg m/s)
//Result
printf("\n energy of photon is %0.2f eV",E)
printf("\n momentum of photon is %0.2f *10^-27 kg m/s",p*10^27)
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