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Microscopes
Microscope Review
Question | Answer |
---|---|
ARM | how you carry the microscope, connects the body to the base |
base | how you carry the microscope, supports the entire microscope |
Body Tube | keeps the distance between the objective and the eye piece |
Coarse adjustment knob | gets the specimen in focus, moves the body tube in BIG jumps |
Diaphragm | regulates the amount of light used during specimen viewing |
eyepiece | where you look into the microscope |
eyepiece magnification | 10 x (10 times) |
fine adjustment knob | used to sharpen the image, makes it crisp and clear. |
high-power objective lense | magnifies the image, zooms in |
when do you use fine adjustment knob | USE AFTER COARSE ADJUSTMENT |
when do you use Coarse adjustment knob | USE ONLY IN LOW POWER |
inclination joint | permits the tilting of the body tube |
when do you use inclination joint | used only during dry-mount slides, NOT with use of wet mount slides |
low-power objective lense | least magnification |
when do you use low-power objective lense | when you are first viewing specimen |
low-power objective lense magnification | 10 x ( ten times) |
high-power objective lense magnification | 40x, 43x, 44x |
mirror | light source, used to reflect light into microscope |
revolving nose piece | to change from low power to high power objectives |
stage | platform that supports the slide |
stage clips | holds the slide in place during viewing |
What part of the microscope do you NEVER touch when using the high power objective? | Coarse Adjustment knob |
In the field of view, where should you position the specimen you are looking at? | the center |
How many types of lenses does a compound light microscope have? | two lenses |
What are the two types of lenses found in a compound microscope | ocular (eye piece) and objective |
In what objective do you always start and finish your microscope viewing in? | low power objective |
Why don't you use the coarse adjustment in high power? | you can crack or shatter the slide |