Physics A-Level
Photon
What Photon means in Physics A-Level, as defined for AQA, OCR.
Definitions of Photon
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Reference: OCR
A quantum of electromagnetic radiation carrying energy E = hf, where h is the Planck constant and f is the frequency.
Electromagnetic radiation can be modelled as a stream of these, each carrying a discrete quantum of energy.
Light arrives as these, each carrying energy E = hf, where h is the Planck constant.
A quantum, meaning a single indivisible unit, of electromagnetic radiation.
Topics that use Photon
- Particles, antiparticles and photons (AQA A-Level)
- The photoelectric effect (AQA A-Level)
- Photons (OCR A-Level)
- The photoelectric effect (OCR A-Level)
Related terms
- Photon model
- Intensity
- Maximum kinetic energy
- Planck constant
- Threshold frequency
- Work function
- Annihilation
- Annihilation energy calculations
Using Photon in the exam
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