Friday, June 24, 2011

Properties of light

Properties of Light
  • light is all around us
  • it reflects off surfaces, which allows us to see images in mirrors
  • seep of light, which is the fastest anything has been observed to move
  • when light enters a material, it slows down: amount depends on the material it enters and it’s destiny
  • refraction means light bends when it passes from one medium to another
  • when light enters a denser medium from one that is less dense, ti bends toward a line normal to the boundary between the two media
  • another property that combines both refraction and reflection is total internal reflection
  • dispersion: ability to break white light into its constituent colors. ex. rainbows are natural phenomena
  • diffraction: light bends as it goes though an opening
  • interference: occurs when tow beams of light meet
http://www.physicsplanet.com/articles/properties-of-light

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