Refraction: When the light travels from one medium to another.
Reflection: Follows the Law of Reflection "the angle of incedence is equal to the angle of reflection"
2 types of reflection
Diffuse reflection- reflected rays go in different directions, usually on rough or uneven surfaces
Regular/Specular reflection- reflected rays go in one direction, image can be seen and usually on shiny and smooth surfaces.
Dispersion- where the light is separated into its colors due to the differences in degrees of refraction, this is how rainbows are formed
Light is electromagnetic radiation that has properties of waves. The electromagnetic spectrum can be divided into several bands based on the wavelength. As we have discussed before, visible light represents a narrow group of wavelengths between about 380 nm and 730 nm.