//Given that
K = 35*10^3  //in ev
e = 1.6*10^-19  //in coulomb
h = 6.62*10^-34  //in J-s
c = 3*10^8  //in m/s

//Sample Problem 41-4
printf("**Sample Problem 41-4**\n")
lambdaMin = h*c/(K*e)
printf("The cutoff wavelength is %em", lambdaMin)