Light Theories-P5

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  • Created by: Shannon
  • Created on: 28-05-13 12:51
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  • Light Theories
    • Newton's Particle Theory of Light
      • Colours- mass of the particle varies with colour
      • Reflection- angle of incidence is equal to the angle of reflection
      • The speed of light is different depending on the materials
      • Refraction- no force on the particle in a medium, force of attraction in dense mediums, the wave speeds up, velocity is deflected
    • Huygen's Wave Theory of Light
      • Light is made up of waves propagated through space
      • Refraction-light is a transverse wave, waves superimpose:reinforce or cancel each other out
    • Thomas Young's Double Slit experiment
      • Colours-different wavelengths of light give different colours (red is the longest)
      • Wave enters a slower medium from a fast one and slows down

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