Physics A-Level
One-to-one interaction
What One-to-one interaction means in Physics A-Level, as defined for OCR.
Definition of One-to-one interaction
Check what you remember
Read the wording for your board, then hide it and explain One-to-one interaction in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A single photon is absorbed by a single electron at or near the metal surface, rather than the interaction being spread over many electrons.
Topics that use One-to-one interaction
- The photoelectric effect (OCR A-Level)
Related terms
- Conservation of energy in photon absorption
- Independence of KEmax from intensity
- Intensity
- Intensity as photons per second
- Maximum kinetic energy
- Photoelectric current
- Photoelectric emission
- Photon
Using One-to-one interaction in the exam
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