Why Does Light Travel Through Glass But Not Opaque Objects?

[nickthrop101]

Please can somebody explain to me how and why light travels through glass into our eyes, as it doesn't in opaque objects?

 

[cragar]

On the faq post # 4
https://www.physicsforums.com/showthread.php?t=104715
it talks about how the electrons form the collective behavior of the solid, And how certain materials can absorb and remit certain colors of light.
And how much light will get reflected transmitted or absorbed will depend on the electric and magnetic constants of the material.
$$\epsilon$$
and $$\mu$$

 

[davenn]

Hi Cragar,

Iin another thread I can't find it any more, you linked to some lectures on light by Richard Feynman

totally enjoyed the 3 lectures :) learned lots Have always enjoyed listening to him.
pity he passed on way too early.

just wanted to say thanks for the link :)

Dave

 

[cragar]

ya no problem

 

[nickthrop101]

hey, what lectures, please can you send me the thread ;) thanks

 

[cragar]

http://vega.org.uk/video/subseries/8
here is is he link to the Feynman lectures on light.

 

[davenn]

thanks Cragar

was looking back through previous topics and couldt find it hahaha

Dave