dawsgreer812 dawsgreer812
  • 01-04-2024
  • Chemistry
contestada

The work function for a metal is 4 eV . To emit a photo electron of zero velocity from the surface of the metal, the wavelength of incident light should be:

a. 3100Å
b. 1700Å
c. 5900Å
d. 2700Å

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