This is more of a conceptual question.(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

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1.[tex]KE_{Max} = hf-\phi[/tex]

2.[tex]\phi[/tex] = Work Function. The minimum energy required to free an electron with a photon

3.[tex]E=hf[/tex] This it the energy of a photon

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In my book it says that" [tex]hf > \phi[/tex]" then electrons can be ejected" and ""If the light frequency is too low, such that the photon energy [tex]hf[/tex] is less than the work function [tex]\phi[/tex], then there is simply insufficeient energy in any given photon to free an electron.

What is the kinetic energy of an electron if the energy of a photon is the same as the Work Function? Like what happens?

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# Homework Help: Simple Photoelectric Effect Conceptual Question

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