Question 6 Achieve HW
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Ivan_Tang_2G
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Question 6 Achieve HW
How would I go about solving number 6, part 2 from the Achieve HW? I found the threshold (3.72*10^-19), but I am not sure how to use that to find the maximum number of electrons? My total energy is 6.47*10^-7.
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Saebean Yi 3E
- Posts: 101
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Re: Question 6 Achieve HW
You're pretty much there! You have all the numbers you need.
Since you already figured out the threshold (which is in J/photon) and you are given the total energy (which is in J), it should be fairly simple to calculate and isolate the number of photons.
From there, the number of photons (with an energy equal to the work function) should be the same as the maximum number of electrons ejected. This can be explained because the idea of a work function is that it is the minimum energy required to eject an electron.
Since you already figured out the threshold (which is in J/photon) and you are given the total energy (which is in J), it should be fairly simple to calculate and isolate the number of photons.
From there, the number of photons (with an energy equal to the work function) should be the same as the maximum number of electrons ejected. This can be explained because the idea of a work function is that it is the minimum energy required to eject an electron.
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