Photoelectric Effect – 7A10.00

h/e Stopping Potential  – 7A10.30

he Potential_7A1030

  • Filters (450, 500, 550, 600, 650 nm) are placed on a light source shining on a PASCO phototube.
  • Connected to the apparatus is a voltmeter which displays the stopping potential for a given wavelength of light.
  • Values of h can be measured within a percent or two.

Location: Jacobs B115