Magnification

Using a microscope, you can take a closer look at small objects, however you may want to know the size of the image, or the magnification should you not know it.

Equation

$$magnification = \frac{size\;of\;image}{size\;of\;real\;object}$$

Example

For example, take a magnification of 3x, and a size of image of 6mm - what is the size of the real object?

$$\begin{align} magnification & = \frac{size\;of\;image}{size\;of\;real\;object} \\ size\;of\;real\;object * magnification & = size\;of\;image \\ size\;of\;real\;object & = \frac{size\;of\;image}{magnification} \\ & = \frac{6}{3} \\ & = 2mm \end{align}$$

Using a table

Size of image (mm)	Magnification	Size of real object (mm)
5	50	0.125
10	1000	0.01
12	60	0.2
8	200	0.04
15	500	0.03

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