A blog covering and explaining the Edexcel IGCSE Physics specification for the 2016 summer exams. If you are doing just double science, you do not need to learn the stuff for paper two, if you are doing triple you will need to learn all (GOOD LUCK!) I have separated the papers to make files easier to find. Hope it helps :)
3.15 use the law of reflection (the angle if incidence equals the angle of reflection)
The law of reflection applies to every single reflected ray... Angle of incidence = angle of reflection NOTE: these two angles are always measured between the normal (dotted line) and the ray itself.
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