Physics A-Level
Photon model
What Photon model means in Physics A-Level, as defined for AQA, OCR.
Definitions of Photon model
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Reference: OCR
Electromagnetic radiation can be modelled as a stream of discrete packets of energy called photons, treating radiation as localised quanta rather than a continuous wave.
The model in which one photon interacts with one electron, supported by radiation below the threshold frequency producing no emission however intense it is.
A model explaining the photoelectric effect and line spectra, where energy is exchanged in discrete amounts.
Topics that use Photon model
- Particles, antiparticles and photons (AQA A-Level)
- Photons (OCR A-Level)
- The photoelectric effect (OCR A-Level)
Related terms
- Photon
- Planck constant
- Annihilation
- Annihilation energy calculations
- Antiparticle
- Charge and quantum number symmetry
- Conservation laws in particle interactions
- Conservation of energy in photon absorption
Using Photon model in the exam
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