Suppose the fractional efficiency of a cesium surface (with work function 1.80 eV) is
Chapter 38, Problem 20(choose chapter or problem)
Suppose the fractional efficiency of a cesium surface (with work function 1.80 eV) is 1.0 10 16; that is, on average one electron is ejected for every 1016 photons that reach the surface. What would be the current of electrons ejected from such a surface if it were illuminated with 600 nm light from a 2.00 mW laser and all the ejected electrons took part in the charge flow?
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