Refraction and the apparent slowing down of light


by ajassat
Tags: apparent, light, refraction, slowing
ajassat
ajassat is offline
#1
Oct2-09, 06:57 AM
P: 55
I wish to understand why the speed of light slows down when it enters a medium such as glass or air.

Is this best understood by treating light as a stream of particles or a wave?

I have read that the speed of light (c) is a result of disturbance of the electromagnetic field. In contrast in media through which light is travelling the speed is a disturbance of the field which governs the position and speeds of the electron (in the material).

Is their any snippet of mathematics which can show how the light slows down in the electron containing medium.

Thank You
Adam
Phys.Org News Partner Physics news on Phys.org
The hemihelix: Scientists discover a new shape using rubber bands (w/ video)
Mapping the road to quantum gravity
Chameleon crystals could enable active camouflage (w/ video)
tiny-tim
tiny-tim is offline
#2
Oct3-09, 03:58 AM
Sci Advisor
HW Helper
Thanks
tiny-tim's Avatar
P: 26,167
Hi Adam!

For a recent discussion, see this thread.


Register to reply

Related Discussions
Question about Slowing light Special & General Relativity 2
Refraction of light-apparent speed Introductory Physics Homework 1
Question: Slowing Down Light General Physics 3
Slowing Light down. General Physics 2