More Refraction
Physics: Cambridge International GCSE Supplement, topic 3.2.4
Angle of Refraction
The angle of refraction is the angle between the refracted light ray and the normal.
More optically dense material
- When light enters a more optically dense medium, it is refracted towards the normal and the angle of refraction is smaller.
Less optically dense
- When light travels from one medium and to a less optically dense medium, it is refracted further away from the normal and the angle of refraction is larger.
Test yourself on More Refraction
Which of these is true about refraction?
A ray of light travels from air into a glass block. Glass is more optically dense than air. What happens to the angle of refraction as the light enters the glass?