Coarse focussing knob - Moves the stage up or down to bring the slide roughly in focus, Fine focussing knob - Used to bring the sample into good focus, Stage clips - Hold the slide in place, Objective lenses - Have different powers to give a more or less magnified view, Light source - Lights up the sample, Diaphragm - Allows more or less light to shine on the sample, Ocular tube - Holds the eyepiece lens in the correct position,

Microscope definitions

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