A student performs a photoelectric experiment in which light of various frequencies is incident on a photosensitive metal plate. This plate, a second metal plate, and a power supply are connected in a circuit, which also contains two meters, M1 and M2, as shown above (see attachment, #1).
The student shines light of a specific wavelength λ onto the plate. The voltage on the power supply is then adjusted until there is no more current in the circuit, and this voltage is recorded as the stopping potential V_s. The student then repeats the experiment several more times with different wavelengths of light. The data, along with other values calculated from it are recorded in the table (attachment, #2).
a.) indicate which meter is used as an ammeter and which meter is used as a voltmeter by checking the appropriate spaces: Ammeter for M1 and M2, Voltmeter for M1 and M2.
b.) Use the data above to plot a graph of Kmax versus f on the zxes below, and sketch a best-fit line through the data. (graph in attachment, too)
c.) Use the best fit line from (b) to calculate an experimental value for Planck's constant.© BrainMass Inc. brainmass.com September 26, 2018, 3:12 am ad1c9bdddf - https://brainmass.com/physics/photoelectric-effect/photoelectric-effect-calculation-graph-planck-s-constant-179237
All parts of this Assignment solved step-by-step. Graph included.