Wikipedia: History of Refraction

Difference (from prior major revision) (minor diff, author diff)

Changed: 5c5

Refraction is also responsible for splitting up of white light in to a rainbow-spectrum as it passes through a glass prism. Glass has a higher refractive index then air and the different frequencies of light travel at different speeds and they split up. The different frequencies correspond to different colours observed.

Refraction is also responsible for rainbows and for splitting up of white light into a rainbow-spectrum as it passes through a glass prism. Glass has a higher refractive index than air and the different frequencies of light travel at different speeds (dispersion), causing them to be refracted at different angles. The different frequencies correspond to different colours observed.

	Revision 10 . . (edit) October 30, 2001 4:30 am by (logged).192.137.xxx [fixed misspelling]
	Revision 9 . . (edit) October 28, 2001 8:20 am by DrBob [link to dispersion]
	Revision 7 . . October 4, 2001 6:26 am by AxelBoldt