You should find that the work function from each wavelength is nearly the same, possibly only different by an uncertainty in the exact voltage that truly stops the current. How does this confirm Einstein's model of the photoelectric effect, and how would you use these data to find Planck's constant, if you did not know it.

Wavelength HG (nm)	Energy in volts for a (1240.8/wavelength)	applied voltage that stopped the photocurrent	Electron volts= (applied voltage) * (1.6x10^-19 C) =eV	Emax = Ephoton -W
365	3.399	-1.99	-3.184 X10^-19	1.409eV
405	3.064	-1.44	-2.304x10^-19	1.624eV
436(blue line)	2.846	-1.29	-2.064 x10^-19	1.556eV
546 (green line)	2.273	-0.70	-1.12 x ^-19	1.573eV