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Same topic for math extended essay and physics IA


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Hey guys,

I am 5 months into the IBDP and for my Extended Essay I have chosen to research the question "How can trigonometric ratios be used to determine the optimum window placement for there to be maximum natural light efficiency in a house?" which at some point would require me to talk about the refractive index and how sun rays are refracted/reflected in glass window panes. My Extended Essay is in the subject Math AA HL. At the same time, for my Physics IA I am thinking of investigating the refractive index of water and how it changes in a concentrated water-glucose solution.

So my question is as follows: is it allowed to write your Extended Essay and IA on very similar topics even though you are doing them in different HL subjects? Thanks for the help in advance!

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