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===Meaning===
The '''angle of refraction''' is the [[angle]] between the between the [[Refracted Ray|refracted ray]] and the [[normal]].
===About the Angle of Refraction===
: When [[light]] travels from [[air]] into [[glass]] the '''angle of refraction''' is always smaller than the [[Angle of Incidence|angle of incidence]].
: When [[light]] travels from [[glass]] into [[air]] the '''angle of refraction''' is always greater than the [[Angle of Incidence|angle of incidence]].
===Examples===
|[[File:RefractionGlassBlock.png|center|600px]]
|-
| style="height:20px; width:200px; text-align:center;"|The '''angle of incidence''' is highlighted in pale red in both of these this [[diagram]]s.
|}
==Key Stage 4 Higher==
===Meaning===
The '''angle of refraction''' is the [[angle]] between the between the [[Refracted Ray|refracted ray]] and the [[normal]].
===About the Angle of Refraction===
: When [[light]] travels from a less [[Optical Density|optically dense]] [[medium]] (such as [[air]] to a more [[Optical Density|optically dense]] [[medium]] (such as [[glass]] or [[water]] the '''angle of refraction''' is always smaller than the [[Angle of Incidence|angle of incidence]].
: When [[light]] travels from a more [[Optical Density|optically dense]] [[medium]] (such as [[glass]] or [[water]]) into a less [[Optical Density|optically dense]] [[medium]] (such as [[air]]) the '''angle of refraction''' is always greater than the [[Angle of Incidence|angle of incidence]].
===Examples===
{| class="wikitable"
|-
|[[File:RefractionGlassBlock.png|center|600px]]
|-
| style="height:20px; width:200px; text-align:center;"|The '''angle of incidence''' is highlighted in pale red in this [[diagram]].
|}
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Angle of refraction, page 195, GCSE Physics, Hodder, AQA']
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Angle of refraction, pages 195-197, GCSE Combined Science Trilogy; Physics, CGP, AQA']
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Angle of refraction, pages 232-234, 237, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA']
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac19 ''Angle of refraction, pages 76, 77, GCSE Physics; The Revision Guide, CGP, AQA']
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Angle; of refraction, pages 203, 205, GCSE Physics; Student Book, Collins, AQA']
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09680 ''Angles; of refraction, page 222, GCSE Combined Science; The Revision Guide, CGP, AQA']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Angles; of refraction, page 99, 100, GCSE Physics, CGP, Edexcel '']