Refraction of light
principle
A change in the direction of light at the boundary between media.
Where it is used
- Lens — is used in. A lens focuses light by refraction.
- Camera obscura — is used in. A lens makes the image sharper; the camera obscura itself works because light travels in straight lines.
- Glasses — is used in. Correction by refraction.
- Microscope — is used in. Magnification through refraction.
- Magnifying glass — is used in. A magnifying glass enlarges through refraction.
- Contact lens — is used in. It corrects the refraction of the eye.
What it is a kind of
- Dispersion of light — includes. A consequence of refraction.