Photon energy and the Planck constant
What Photon energy and the Planck constant means in Physics A-Level, as defined for OCR.
Definitions of Photon energy and the Planck constant
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Reference: OCR
The minimum energy needed equals the photon energy hf, and photon energy is related to frequency by E = hf and to wavelength by E = hc/λ.
ΔE = hf gives the photon energy from its frequency, where h is the Planck constant, about 6.63 × 10⁻³⁴ J s.
Topics that use Photon energy and the Planck constant
- Electromagnetic radiation from stars (OCR A-Level)
- Photons (OCR A-Level)
Related terms
- Black-body modelling of stars
- Continuous spectrum
- Discrete energy levels
- Electronvolt
- Emission line spectrum
- Energy levels
- Estimation of stellar surface temperature
- Experimental uncertainty and evaluation
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