Physics A-Level
Photocathode
What Photocathode means in Physics A-Level, as defined for AQA.
Definition of Photocathode
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Reference: AQA
Releases electrons when visible photons strike it by the photoelectric effect, the number of photoelectrons being proportional to the light intensity.
Topics that use Photocathode
- Gamma camera (A-level only) (AQA A-Level)
Related terms
Using Photocathode in the exam
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