76 In about 1916, R. A. Millikan found the following stopping- potential data for lithium in his photoelectric experiments: Wavelength (nm) 433.9 404.7 365.0 312.5 253.5 Stopping potential (V) 0.55 0.73 1.09 1.67 2.57 Use these data to make a plot and then use the plot to find (a) the Planck constant and (b) the work function for lithium. 85 In about 1916, R. A. Millikan found the following stopping-potential data for lithium in his photoelectric experiments:Wavelength (nm)433.9404.7365.0312.5253.5Stoppingpotential (V)0.550.731.091.672.57Use these data to make a plotand then use the plot to find (a) the Planck constant and (b) thework function for lithium.

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76 In about 1916, R. A. Millikan found the following stopping- potential data for lithium in his photoelectric experiments: Wavelength (nm) 433.9 404.7 365.0 312.5 253.5 Stopping potential (V) 0.55 0.73 1.09 1.67 2.57 Use these data to make a plot and then use the plot to find (a) the Planck constant and (b) the work function for lithium.

76 In about 1916, R. A. Millikan found the following stopping- potential data for lithium in his photoelectric experiments: Wavelength (nm) 433.9 404.7 365.0 312.5 253.5 Stopping potential (V) 0.55 0.73 1.09 1.67 2.57 Use these data to make a plot and then use the plot to find (a) the Planck constant and (b) the work function for lithium.

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