Refractive Index

Refractive Index

1. Refraction

   • is when waves change direction
     • caused by the change in density from one medium to the other
       • changes the speed of the waves
   • is when waves change direction
     • caused by the change in density from one medium to the other
       • which changes the speed of the waves

2. Refractive Index

3. Refraction Index

   • of a medium is the ratio of speed of light in a vacuum to speed of light in that medium
   • The angle of refraction of the ray depends on the refractive index of the material
     • Remember 'oh SHIFT its an ANGLE'

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