3.2.2 Refraction of light
- Syllabus
- 0625–2026–2027
- Topic
- 3.2.2
- Level
- —
3.2.2.1—Terms normal, angle of incidence and
- Define and use the terms normal, angle of incidence and angle of refraction
3.2.2.2—An experiment to show refraction of
- Describe an experiment to show refraction of light by transparent blocks of different shapes
3.2.2.3—Passage of light through a transparent
- Describe the passage of light through a transparent material (limited to the boundaries between two mediums only)
3.2.2.4—Meaning of critical angle
- State the meaning of critical angle
3.2.2.5—Internal reflection and total internal
- Describe internal reflection and total internal reflection using both experimental and everyday examples
3.2.2.6—Refractive index, n, as the ratio of
- Define refractive index, n, as the ratio of the speeds of a wave in two different regions
3.2.2.7—Refractive index: n = sin i / sin r
- Recall/use refractive index: n = sin i / sin r
3.2.2.8—Critical angle relation: n = 1 / sin c
- Recall/use critical angle relation: n = 1 / sin c
3.2.2.9—Use of optical fibres, particularly in
- Describe the use of optical fibres, particularly in telecommunications
Objective notes
9 learning objectivesConceptIGCSE Physics