97.36: A student performs the Photoelectric Effect Exper
+rbbmu88k, ot1q51kj*obez siment and obtains the data depicted in the accompanying gra
u1o+bk tm858 jqbkbr,z s*oe1ph 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?