When you hold a certain piece of glass up to the light

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SUMMARY

The discussion centers on the optical properties of a piece of glass that appears blue when light passes through it but yellow when light is reflected off it. Participants conclude that the glass's color perception is influenced by its shape and the phenomena of reflection and refraction. The original color of the glass is not specified, leading to assumptions that it is not clear. The need for a more detailed description of the glass is emphasized for accurate analysis.

PREREQUISITES
  • Understanding of optical phenomena such as reflection and refraction
  • Basic knowledge of color theory and light behavior
  • Familiarity with the properties of glass materials
  • Awareness of how light interacts with different surfaces
NEXT STEPS
  • Research the principles of light refraction in glass
  • Explore the effects of surface shape on light reflection
  • Study the color perception of materials under different lighting conditions
  • Investigate the relationship between light wavelengths and color appearance
USEFUL FOR

Students of physics, optical engineers, and anyone interested in the science of light and color perception will benefit from this discussion.

bukie33613
When you hold a certain piece of glass up to the light...

Hi,
My question is thus:
When you hold a certain piece of glass up to the light, the light coming through it appears blue. But when you shine light on it, it has a yellow color. What's going on?
 
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But when you shine light on it, it has a yellow color.

what's the "it" referring to? the piece of glass? the particles in the air reflecting the light?
 
I am guessing he means the glass, and by that I would say he is speaking of reflection and refraction. As bukie never mentions the original color of the glass as seen by "white" light, I am also assuming that the color of it is one other than "clear." Now correct me if I'm wrong but the shape of the glass would have to be something other than "flat" in order to cause it to appear "yellow" when the light is reflected off it, and "blue" when light passes through it.
I'm afraid you're going to have to be alittle more specific in your description, bukie.
 

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