97.36: A student performs the Photoelectric Effect Ex
/pbgp sm0myh-oh5+ d3periment and obtains the data depicted in the accompanying
sp/ y5mphd 0bgm3o+h-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?