Sunday, January 29, 2012

Physics Form 4: Chapter 5 - Refraction of Light

  • Refraction is the phenomenon of light bending when it travels from one medium to another medium.
  • Refraction occurs because the velocity of light changes when it travels from a medium into another medium.

The law of refraction states that:
  1. The incident and refracted rays are on opposite sides of the normal at the point of incidence and all three are in the same plane.
  2. The ration of sin i / sin r is a constant. This constant is called refractive index.

Click on the diagram below to play!

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