|MadSci Network: Cell Biology|
A light microscope is typically called a compound microscope because it magnifies an object in multiple steps. First, the objective lens magnifies the object to form an intermediate image then the eyepiece lens magnifies this image further. For example, in a microscope with a 40X objective and a 10X eyepiece the object under the microscope would be magnified 40 times by the objective lens then an additional 10 times by the eyepiece lens so the final magnification you observe would be 400 times. This is in contrast to s simple microscope which would consist of one set of lenses (a magnifying glass is an example of a simple microscope).
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