2 votes

Will light follow a stream of water?

Light can follow a stream of water by internal reflections between the water and air boundaries. The critical angle for internal reflection between water and air is approx. 48.5° so any light in the ...
user avatar
2 votes

Antireflection coating: does reflection that destructively interferes lead to more transmitted light?

In wave interference, the energy has to go somewhere. So, if interference cancels the radiation in a particular direction it must enhance it in another.
user avatar
  • 4,083
2 votes
Accepted

General criteria for whether or not a mirror will form images

There is a caveat for the formation of images (virtual and real). I think you were talking about rigorous stigmatism, ie exact intersection of the light rays. With this definition, if you want every ...
user avatar
  • 1,647
1 vote

Specular and diffuse reflection at the same time

You've asked several things here. Let me try: The "white spot" is visible because the spectral absorption is far from 100%. Thus when the source is of significant intensity, enough light ...
user avatar
1 vote

What effect does surface have on light absorption at different wavelengths?

You‘re not missing anything, because the 2nd explanation about nanoparticles isn‘t really correct. It‘s a quantum effect whereas the first part is classical electrodynamics. The phenomenon is called ...
user avatar
  • 11

Only top scored, non community-wiki answers of a minimum length are eligible