SAPLING homework #4(for me)


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Bailey Giovanoli 1L
Posts: 107
Joined: Wed Sep 30, 2020 9:50 pm

SAPLING homework #4(for me)

Postby Bailey Giovanoli 1L » Thu Oct 22, 2020 1:27 pm

On one of the problems on sapling you are given the question:

What is the maximum number of electrons that could be ejected from this metal by a burst of photons (at some other frequency) with a total energy of 7.34×10−7 J?

In the first Part of the problem, I had to solve for the threshold energy. I am expected to use that when carrying over into part b, right? If I didn’t, I don’t think there is enough information to solve the problem. I just wanted to clarify.

NayeliPlayas_1L
Posts: 130
Joined: Wed Sep 30, 2020 9:59 pm

Re: SAPLING homework #4(for me)

Postby NayeliPlayas_1L » Thu Oct 22, 2020 1:32 pm

For part B to get your maximum number of electrons you would divide your total energy by the work function which you got on part a. In other words, yes you would use part a to answer part b.

Ann Cosico 2H
Posts: 15
Joined: Wed Sep 30, 2020 10:01 pm

Re: SAPLING homework #4(for me)

Postby Ann Cosico 2H » Thu Oct 22, 2020 1:35 pm

Yeah! You would use the amount you got for the work function for the second part of the question. This amount would be divided with the total energy in J to get the maximum number of electrons.

Bailey Giovanoli 1L
Posts: 107
Joined: Wed Sep 30, 2020 9:50 pm

Re: SAPLING homework #4(for me)

Postby Bailey Giovanoli 1L » Thu Oct 22, 2020 1:39 pm

Thank you! I’ve got it now!


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