Microscopy

Calculating magnification: 

Magnification = size of image / actual size (Object size)

All units must be the same, the usual unit is um. Usually mm will be needed to be converted to this. This is done by times 1000. For example 10mm = 10,000um 

Calculating actual size:

Actual size= size of image / magnification 

Still always use um. Always divide the size of image by magnification

The elsectron microscope:

The electron beam has a short wavelength…