97.36: A student perfor
ibfp,y kj4do 2:b 0kx,ms the Photoelectric Effect Experiment and obtains the data
b 2bi,f ykjpxk:d,40o depicted in the accompanying graph of $E_{Km}$, the maximum kinetic energy of the photoelectrons in eV, versus f, the frequency of the photons in $10^{14}$ Hz. What is the approximate work function for this material?