Friday, February 12, 2010
                                                 
                                                 Refraction- Light bends when a light ray travels from one medium to another medium of different density. (e.g. air to water)
- This bending of light = refraction
- There are 2 important factors ~ Density and Speed
 
 1. When light rays enter a medium of higher density, the speed of light slows down, thus bending towards the normal.2. When light rays enter a medium of lower density, the speed of light speeds up, thus bending away from the normal.
1. When light rays enter a medium of higher density, the speed of light slows down, thus bending towards the normal.2. When light rays enter a medium of lower density, the speed of light speeds up, thus bending away from the normal.
                                                 
                                                 Jasley was here @
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