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Science
The Functions of the Parts of a Microscope
| Term | Definition |
|---|---|
| body tube | reflects light up to the viewer's eye |
| revolving nose piece | holds the objectives lenses and can be turned to change from one magnification to another |
| low power objective | (4x magnification) the first lens that you use when using a microscope |
| medium power objective | (10x magnification) the second most powerful lens |
| high power objective | (40x magnification or more) the highest magnification |
| stage clips | holds the slide in place for viewing on the stage |
| diaphragm | used to vary the amount of light passing through the slide; usually it is better if the amount of light is low |
| light source | sends light through the diaphragm to see the specimen |
| ocular lens/eye piece | (10x magnification) the part that you're looking through |
| arm | the part that supports the body tube; part that you hold to safely transport the microscope |
| stage | the flat part where slides are placed |
| course adjustment knob | the larger knob- moves the body tube up and down to allow focusing of the image; the first used to using the smallest power *never to be used under the highest power* |
| fine adjustment knob | the smaller knob- moves the body tube slightly to bring the image into a sharper focus; the sharpest focus when using the highest power |
| base | supports the microscope- important to transport |