Photon energy and frequency
What Photon energy and frequency means in Physics A-Level, as defined for AQA, OCR.
Definitions of Photon energy and frequency
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Reference: OCR
Photon energy is directly proportional to frequency, E = hf, where h is the Planck constant (6.63 × 10⁻³⁴ J s) and f is frequency in hertz.
The energy of one quantum is directly proportional to the frequency of the radiation, given by E = hf.
Topics that use Photon energy and frequency
- The discovery of photoelectricity (A-level only) (AQA A-Level)
- Photons (OCR A-Level)
Related terms
- Planck constant
- Quantisation of energy
- Electronvolt
- Experimental uncertainty and evaluation
- Intensity
- Limitations of classical wave theory
- Linearising data using 1/λ
- Photoelectric effect
Using Photon energy and frequency in the exam
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