Transmission, reflection, and absorbtion

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SUMMARY

The discussion centers on the fundamental principles of light interaction with objects, specifically focusing on transmission, reflection, and absorption. It is established that for an object, such as an apple, to appear red in white light, it reflects red wavelengths while absorbing others. The key point is that the human eye perceives color when photons are absorbed by the retina, confirming that absorption is essential for visual perception.

PREREQUISITES
  • Understanding of light properties, including reflection, absorption, and transmission.
  • Basic knowledge of the human visual system, particularly the role of the retina.
  • Familiarity with the electromagnetic spectrum, specifically the visible light range.
  • Concepts of color theory and how objects interact with light.
NEXT STEPS
  • Research the electromagnetic spectrum and its relation to visible light.
  • Study the anatomy and function of the human retina in color perception.
  • Explore the principles of color reflection and absorption in different materials.
  • Investigate the physics of light and its interaction with matter, including photon behavior.
USEFUL FOR

Students of physics, educators in optics, and anyone interested in the science of color perception and light behavior.

LogicalAcid
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In order for us to see something, the light photon needs to be reflected, not absorbed or transmitted? Then is it that the same frequency of visible light keeps falling on something, an apple is always red in white light, why does it reflect red?
 
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Actually, in order for us to see something, a photon has to be *absorbed*. By the retina.
 
Andy Resnick said:
Actually, in order for us to see something, a photon has to be *absorbed*. By the retina.

in the atoms pov i mean
 

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