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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: m.wilson93 on December 15, 2021, 02:53:38 PM

Title: Photoelectric effect
Post by: m.wilson93 on December 15, 2021, 02:53:38 PM

A aluminum surface emits electron when radiated with a light of frequency 4.22×1015 Hz. Calculate the maximum kinetic energy of the ejected electron if the work function of aluminum is 4.09 eV.

With the values given, I think that the binding energy is greater than that of the Energy of the photon and so there would be no photoelectrons. Am i missing something?

Title: Re: Photoelectric effect
Post by: Borek on December 15, 2021, 03:15:34 PM

https://physics.nist.gov/cgi-bin/cuu/Convert?exp=0&num=4.09&From=ev&To=hz&Action=Convert+value+and+show+factor