97.36: A student performs the Photoelectric Effect Experiment and obtain
8fg )avxaog7 3o689 0 ybpdtsgs the data depict
pgasaxtv07)d 8f39y 86o obg ged 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?