Physics GCSE
refraction at two surfaces
What refraction at two surfaces means in Physics GCSE, as defined for AQA.
Definition of refraction at two surfaces
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Reference: AQA
Every ray is refracted twice, once at each curved surface, because light slows down when it enters glass and speeds up when it leaves.
Topics that use refraction at two surfaces
- Lenses (physics only) (AQA GCSE)
Related terms
- always virtual
- arrowheads in or out
- converging and diverging
- diverging lens
- dotted projections
- magnifying glass
- matched comparison
- real image
Using refraction at two surfaces in the exam
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