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Microscope Parts
| Question | Answer |
|---|---|
| ocular lens | lens at the top that you look through; usually has a magnification power of 10x |
| body tube | connects eyepiece to revolving nosepiece |
| course adjustment knob | larger knob; moves body tube to produce larger changes in focus |
| fine adjustment knob | smaller knob; moves body tube to produce small changes in focus and see details more clearly |
| arm | supports the body tube and connects it to the base |
| revolving nosepiece | holds 2 or more objective lenses and can be rotated to easily change level of magnification |
| objective lenses | lenses attached to revolving nosepiece |
| stage clips | hold the slide in place on the stage |
| diaphragm | controls the amount of light allowed to pass through specimen |
| base | bottom of microscope that supports all of its parts |
| how you should carry a microscope | 2 hands - one on arm, one under base |
| field of vision | area of the slide you see when you look through the microscope |
| longest objective lens | highest power of magnification |
| how to find total magnification | ocular lens x objective lens |
| how increased magnification affects field of vision | as magnification increases, field of vision decreases |
| ocular lens = x10, objective lens = x40 What is the total magnification? | x400 |