daniaridha Posted September 28, 2014 Report Share Posted September 28, 2014 Hi everyone, if anyone could please explain how to calculate the magnification of a scale bar that would be highly appreciated. For instance, if you are given a scale bar represented by a 2 micrometre value, and when I measured the scale bar itself it came to 1.8 cm, and the answer is X 8500, how would would actually achieve that answer? Thanks! Reply Link to post Share on other sites More sharing options...
whatislife Posted September 29, 2014 Report Share Posted September 29, 2014 Hi! Do you know about the equation: Magnification = Size of image (you measure this with a ruler) ÷ Actual size of object (according to scale bar, so if your image is 1 cm and your scale bar tells you 1 cm is equivalent to 10 um, then your object is 10 um) ? It's 2.1.5 of the 2009 syllabus btw. Reply Link to post Share on other sites More sharing options...
Pink97 Posted September 29, 2014 Report Share Posted September 29, 2014 (edited) Magnification= Size of Image/Size of Actual Therefore, convert 1.8 into micrometers (because they need to be of the same units) = 1.8 * 10,000 = 18,000 micrometers Then apply the values to the formula: M = 18000/2 = X9000 The answer can't be X8500. Edited October 4, 2014 by pink97 Reply Link to post Share on other sites More sharing options...
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