Physics A-Level
Refraction
What Refraction means in Physics A-Level, as defined for AQA, OCR.
Definitions of Refraction
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Reference: AQA
The gradual bending of sky waves as electron density changes through the ionosphere, which can return them to Earth.
The change in direction of light when it crosses a boundary between media, caused by a change in speed.
Topics that use Refraction
- Transmission media (A-level only) (AQA A-Level)
- Electromagnetic waves (OCR A-Level)
Related terms
- Comparison of transmission media
- Critical angle
- De-sensing
- Diffraction
- Geostationary satellites
- Metal wire
- Microwave transmission
- Optic fibre
Using Refraction in the exam
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