# Tagged Questions

The observed behavior in which light falling on certain metals can eject electrons from the surface.

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### The Photoelectric Effect in passive cooling?

Information on the Photoelectric Effect: https://en.wikipedia.org/wiki/Photoelectric_effect Summary: Some metals release electrons when struck by a certain frequency of photon. What does this mean ...
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$q_eV_s = hf - \phi$ My question is... suppose we are testing the photoelectric effect. One plate is illuminated. We have applied the stopping potential. Suppose an electron leaves one plate with $KE ... 1answer 77 views ### Why is dark current on CCD devices pixel dependent I'm reading about sources of noise in cameras while taking images - One of them is the dark current. That is, some electrons in the CCD device of a camera are set free due to thermal noise. Those free ... 4answers 30k views ### Stopping potential in the photoelectric effect, collector work function In this question I am talking about the following situation: Now, I know that the max kinetic energy of the electrons emitted is$KE_{max} = h\nu - e\phi_{em}$where$\phi_{em}$is the work ... 1answer 79 views ### How is work function related to oxidation? Low work function metals, such as Li and K, oxidize in ambient conditions, whereas high work function metals such as Au do not oxidize. In chemistry there's activation energy and reaction rate ... 1answer 393 views ### Is the current vs. frequency graph hyperbolic for the photoelectric effect? Concerning the photoelectric effect: When the intensity and applied voltage are both constant, then the current is inversely proportional to frequency$f$(above threshold frequency). If we increase$...
If a photon with spin angular momentum $+1$ with sufficient energy strikes an electron with spin $+1/2$, emission will take place. As angular momentum can't be conserved, what will happen?