## Question Wording on Photoelectric Effect

Allison_Eminhizer_3A
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### Question Wording on Photoelectric Effect

The question I'm stuck on asks for the lowest frequency of light that will cause photoelectric emission, and then the maximum energy of the electrons emitted. The wording is confusing me, does this involve an inequality?

Chem_Mod
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### Re: Question Wording on Photoelectric Effect

If you can be more specific or provide the problem, then I can help more.

Shailyn_Moore_3C
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### Re: Question Wording on Photoelectric Effect

I'm pretty sure you are referring to one of the problems in the workbook and when it ask for lowest frequency of light that will cause photoelectric emission is simply asking what is the minimum frequency needed to generate enough energy to displace an electron. Which should be the frequency with energy equivalent to the work function. And for the maximum energy of the electrons emitted when light of 7.3 x 10^14 Hz is used, it is asking for the kinetic energy of the electrons ejected which you can recall is equal to the (energy of the light) - (work function). Hope I helped!

Allison_Eminhizer_3A
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### Re: Question Wording on Photoelectric Effect

Okay that helps thank you!

Jared Gao 3G
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Joined: Wed Sep 21, 2016 2:58 pm

### Re: Question Wording on Photoelectric Effect

I also have a question on the wording involved with photoelectric effect problems. For example, in the quiz problems, what would "energy dissipated" be considered as? Would this be considered as the excess energy lost after reaching the threshold energy? If so, does that mean I could also say kinetic energy is the same as energy dissipated?