Physics A-Level
Quantum efficiency
What Quantum efficiency means in Physics A-Level, as defined for AQA.
Definition of Quantum efficiency
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Reference: AQA
The fraction of incident photons that produce a detectable signal, which is low for the eye but can exceed 80 per cent for a CCD.
Topics that use Quantum efficiency
- Advantages of large diameter telescopes (A-level only) (AQA A-Level)
Related terms
- Astronomical calculations
- Collecting power
- Radian
- Rayleigh criterion
- Resolution
- Airy pattern
- Angular measure
- Angular resolution
Using Quantum efficiency in the exam
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