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→Refraction of Light
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|[[File:RefractionGlassBlock.png|center|500px600px]]
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| style="height:20px; width:200px; text-align:center;" |When a [[Light Ray|ray of light]] moves from [[air]] into [[glass]] the [[Light Ray|ray]] is '''refracted''' towards the [[normal]] and when it moves from [[glass]] into [[air]] the [[Light Ray|ray]] is '''refracted''' away from the [[normal]]