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A Level Physics Question.?
I'm struggling with this past paper question. Could someone give me a complete step by step way of answering this. I've found the number of electrons, but can't get the number of photons!
A total charge of 3.52x10^–18 C was detected in a pixel. How many photons were incident on that pixel if the photon absorption efficiency is 40%?
Absorption efficiency is the percentage of incident photons that cause an electron to be promoted from the valence band to the conduction band.
Thanks :)