3-54. Millikan's data for the photoelectric effect in lithium are shown in the table. Incident X (nm) 253.5 312.5 365.0 404.7 433.9 1.67 1.09 0.73 0.55 Stopping Voltage V₁ (V) 2.57 (a) Graph the data and determine the work function for lithium. (b) find the value of Planck's constant directly from the graph in (a). (c) The work function for lead is 4.14 eV. Which, if any, of the wavelengths in the table would not cause emission of photoelectrons from lead?

3-54. Millikan's data for the photoelectric effect in lithium are shown in the table. Incident X (nm) 253.5 312.5 365.0 404.7 433.9 1.67 1.09 0.73 0.55 Stopping Voltage V₁ (V) 2.57 (a) Graph the data and determine the work function for lithium. (b) find the value of Planck's constant directly from the graph in (a). (c) The work function for lead is 4.14 eV. Which, if any, of the wavelengths in the table would not cause emission of photoelectrons from lead?