Refraction of light
Core concepts and learning points for this section:
Syllabus Points
Core
- 3.2.2.1 Define and use the terms normal, angle of incidence and angle of refraction
- 3.2.2.2 Describe an experiment to show refraction of light by transparent blocks of different shapes
- 3.2.2.3 Describe the passage of light through a transparent material (limited to the boundaries between two mediums only)
- 3.2.2.4 State the meaning of critical angle
Supplement
- 3.2.2.5 Define refractive index, n , as the ratio of the speeds of a wave in two different regions
- 3.2.2.6 Recall and use the equation sin i n = sin r
- 3.2.2.7 Recall and use the equation 1 n = sin c
- 3.2.2.8 Describe the use of optical fibres, particularly in telecommunications
- 3.2.2.9 Describe the use of optical fibres, particularly in telecommunications