Refraction
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7 Terms
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Refraction
change of direction of waves as it passes on an angle in a different medium
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Refractive index
how many times slower light moves through a transparent substance
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When does refraction no occur
when light enters “head on” on a 90 degree angle, it will only slow down
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Less dense → more dense
Bends towards the norm
AOI > AOR
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More dense → less dense
Bends away from norm
AOI < AOR
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Why refraction occurs
Light refracts when it enters a different medium because it changes speed as it passes through materials with different densities
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Refraction factors
angle of incidence, and the refractive index.
bigger AOI=bigger refraction
Note 
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