Exam Question Clarification  [ENDORSED]

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mendozayael_2H
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am

Exam Question Clarification

Postby mendozayael_2H » Sun Oct 22, 2017 10:37 pm

One of the concept questions asked whether increasing the intensity of light waves would make able to eject an electron. Just wanted to clarify if "increasing the intensity" meant increasing the amount of the same-sized light waves hitting the surface, or if it meant increasing its frequency, thereby making it able to eject an electron.

Miranda 1J
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am

Re: Exam Question Clarification  [ENDORSED]

Postby Miranda 1J » Sun Oct 22, 2017 10:38 pm

I think it meant increasing the amount of the same-sized light waves hitting the surface of the metal.

Kyung_Jin_Kim_1H
Posts: 53
Joined: Thu Jul 27, 2017 3:00 am

Re: Exam Question Clarification

Postby Kyung_Jin_Kim_1H » Sun Oct 22, 2017 10:59 pm

I agree with Miranda-- I think that increasing intensity meant increasing the number of photons, not the frequency since it was a concept question looking to test whether students recognized the significance of the photoelectric experiments.

Rachel N 1I
Posts: 48
Joined: Thu Jul 27, 2017 3:00 am

Re: Exam Question Clarification

Postby Rachel N 1I » Sat Nov 04, 2017 4:02 pm

Yes, I also agree with Miranda. You can't eject electrons by increasing the intensity of the radiation because in order to eject the electron.


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