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Sine theta significant figures

I did my refractive index AQA A isa yesterday and I think I quoted sine theta to the wrong amount of significant figures! :|

the angle was to 3 because of the .0 or .5 so should I have done sine theta to 3, too? even though I couldn't realistically plot that on the graph? I did it to 2 sig figs.. is this wrong?
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Avatar for roar558
roar558
11
Not really but as far as I know most subjects prefer answers to 3 sig. fig. although as long as it's clear you rounded it, I don't think you would lose the mark.

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