Shinwari,Mariam,Ivan text:
Law of Reflection
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"Reflection is a change in direction of a wave upon striking the interface between two materials."1#anchor
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2. The Law of Reflection. (n.d.). Retrieved December 10, 2012, from The Physics Classroom: http://www.physicsclassroom.com/mmedia/optics/lr.cfm\\
1.http://en.wikipedia.org/wiki/Refraction
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