Physics A-Level
Intensity as photons per second
What Intensity as photons per second means in Physics A-Level, as defined for OCR.
Definition of Intensity as photons per second
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Reference: OCR
The energy transferred per unit area per unit time, so for fixed frequency it is proportional to the number of photons arriving per second.
Topics that use Intensity as photons per second
- The photoelectric effect (OCR A-Level)
Related terms
- Conservation of energy in photon absorption
- Independence of KEmax from intensity
- Intensity
- Maximum kinetic energy
- One-to-one interaction
- Photoelectric current
- Photoelectric emission
- Photon
Using Intensity as photons per second in the exam
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