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What microscope is used to focus under low power only?
Course Focus Knob- low Fine Focus Knob- high -MC
What wheel adjustment is used to sharpen the focus on high power magnification?
Couse focus knob
What adjustment knob is used to focus with high power?
coarse
Why the specimen be centered in field of view on low power before going to high power?
Because it is too hard to find a specimen on high power. Easier to find them and focus them on low power and then increase the magnification and fine-tune the focus to get a better, closer look.
What is fine adjustment of the microscope?
You use the fine adjustment to focus in HIGH power with a compound microscpe.
Why shouldn't you use the course adjustment knob when viewing the specimen under high power?
You shouldn't. You can cause the high objective to smash into the surface of the slide and crack it. Always use the fine adj. for high power and if you cannot get the high power in focus, reverse out to low again and do it over. Ideally, if you are in focus on low, you should be in focus at medium (may have to adjust a small amount) and if you are in focus under medium, when you swing the high power obj. into place, it should be in focus as well (may need a fine tune). Always reverse out and start all over again if you cannot focus it under high power. Deja Was Here
What microscope is used to focus under low power only?
Course Focus Knob- low Fine Focus Knob- high -MC
Which activity might lead to damage of a microscope and specimen?
using the course adjustment to focus the specimen under high power
When do you use fine focus and the coarse focus knobs?
The fine focus knob is used to bring an object into fine focus, while the course focus knob is used to bring an object into approximate focus. The course focus knob should only be used on the low-power and scanning objectives of the light microscope. Using it on the high power microscope is okay, but you should be very careful. It is no recommended to use the course adjustment knob on the oil-emersion objective as it is so close to the stage and could lead to a potential break in the slide. Fine focus adjustment knob is useful to bring out the fine details in the specimen on your slide. Can be used on any of the objectives, but most receptive on the high-power and oil-emersion objectives.
Which of these is not true when changing magnification form low power to high power?
The specimen should be in clear focus
Why should you focus on low power before switching to high power?
You should first focus the slide on low power before you switch it to high power because it is easier to find the specimen on the slide. When you switch to a higher power, the field of view gets zoomed in.
What word is used to indicate that if the object is in focus at low power it will also be in focus with high power?
parfocal
What word is used to indicate that if the object is in focus at low power it will also be in focus at high power?
Parfocal
What word is used to indicate if object is in focus at low power it will also be in focus at high power?
parfocal
What wheel adjustment is used to sharpen the focus on high power magnification?
Couse focus knob
What adjustment knob is used to focus with high power?
coarse
What is the fine focus on a microscope?
The fine focus can move the stage up and down in tiny distances to help you focus in high-power.
