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clear
//
//
//
//Variable declaration
h=6.625*10**-34 //planck's constant
c=3*10**8 //velocity of light(m/s)
lamda0=3000*10**-10 //wavelength(m)
e=1.6*10**-19 //charge(coulomb)
lamda=2536*10**-10 //wavelength(m)
//Calculation
hf0=c*h/(lamda0*e) //work function(eV)
E=c*h*((1/lamda)-(1/lamda0))/e //maximum kinetic energy(eV)
//Result
printf("\n work function is %0.2f eV",hf0)
printf("\n maximum kinetic energy is %0.3f eV",E)
printf("\n answer varies due to rounding off errors")
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