Amplitude


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Maria Trujillo 1L
Posts: 47
Joined: Fri Apr 06, 2018 11:05 am

Amplitude

Postby Maria Trujillo 1L » Sun Apr 15, 2018 11:36 pm

I know that amplitude is not that often mentioned, nor is there an equation regarding amplitude, that we have encountered. However, I was wondering what the relevance was regarding the photoelectric effect and the first experiment. I know that increasing wavelength and amplitude, will do nothing if the frequency is not high enough to produce energy that will be above the threshold. Yet, when the frequency does manage to get energy above the threshold, increasing the amplitude will cause an increase in effect, but why? Also does this change the equation when amplitude is increased and frequency is high enough?

MariahClark 2F
Posts: 60
Joined: Wed Nov 15, 2017 3:04 am

Re: Amplitude

Postby MariahClark 2F » Sun Apr 15, 2018 11:41 pm

What do you mean by "will cause in an increase in effect"?

Chem_Mod
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Re: Amplitude

Postby Chem_Mod » Mon Apr 16, 2018 12:50 pm

Amplitude is related to the intensity of light. Doubling the amplitude is doubling the intensity, meaning your # of photons you bombard the metal doubles from the example you provide.

Isobel Tweedt 1E
Posts: 31
Joined: Fri Apr 06, 2018 11:05 am

Re: Amplitude

Postby Isobel Tweedt 1E » Mon Apr 16, 2018 2:04 pm

To clarify, you square the amplitude to get the intensity of that wave.


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