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July 6, 2015

Homework Help: Physics

Posted by Vanda on Friday, March 18, 2011 at 5:15pm.

The work function for potassium and cesium are 2.25 and 2.14 eV, respectively.
a) Will the photoelectric effect occur for either of these elements with incident light of wavelength 565 nm?
b) With light of wavelength 518 nm ?

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