Water and diamonds for instance are transparent while graphite is not?

  • Thread starter triac
  • Start date
20
0
This one has also puzzled me for quite some time.
How come that glass, water and diamonds for instance are transparent while for example graphite is not?
Furthermore, since the light travels at lower speed in glass and in water than it does in vacuum, it must mean that the photons interact with the material (colloquially referred to as "bouncing" on the electron as what I've heard). However, if the photons interact with the material, how can they preserve the angle with which they entered the glass, water or whatever it might be? Why isn't the picture just blurred out?
I'd like to get rid of this ignorance of mine.
 

Want to reply to this thread?

"Water and diamonds for instance are transparent while graphite is not?" You must log in or register to reply here.

Related Threads for: Water and diamonds for instance are transparent while graphite is not?

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top