Discrete energy levels
What Discrete energy levels means in Physics A-Level, as defined for AQA, OCR.
Definitions of Discrete energy levels
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Reference: AQA
Only certain energy changes occur, shown by sharp lines rather than the continuous spread a continuous spectrum would imply.
The fixed levels that electrons occupy in an atom, so that only certain level gaps exist.
Topics that use Discrete energy levels
- Energy levels and photon emission (AQA A-Level)
- Electromagnetic radiation from stars (OCR A-Level)
Related terms
- Photon emission
- Black-body modelling of stars
- Continuous spectrum
- Emission line spectrum
- Energy levels
- Estimation of stellar surface temperature
- Grating spacing
- Line spectra
Using Discrete energy levels in the exam
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