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What is fine adjustment of the microscope?
You use the fine adjustment to focus in HIGH power with a compound microscpe.
What microscope is used to focus under low power only?
Course Focus Knob- low Fine Focus Knob- high -MC
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.
Why is necessary to focus with the fine adjustment in high magnification?
To bring a sharp focus.
What is the function of a fine adjustment on a microscope?
rotated to move the body tube down or the stage up in tiny distances to help you focus in HIGH power.
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.
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 is fine adjustment of the microscope?
You use the fine adjustment to focus in HIGH power with a compound microscpe.
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.
What microscope is used to focus under low power only?
Course Focus Knob- low Fine Focus Knob- high -MC
Why do you have to be carefull when you are focusing the high power lens?
On a microscope, you have to make sure to use the fine focus instead of the coarse focus. If you are not careful and you do use the coarse focus, it will move the barrel down and the lens may crush your slide/slide cover. Which is very, very bad.
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 does a fine focus do on a microscope?
This allows for small adjustments to the focus. Usually the large focus is used with smaller powers (not zoomed in as much), to locate the specimen and move it closer (or further away) from the lens. The fine focus knob is used once the specimen is almost in focus, or if you are on high power.
Why use the fine adjustment to focus a microscope?
This allows for small adjustments to the focus. Usually the large focus is used with smaller powers (not zoomed in as much), to locate the specimen and move it closer (or further away) from the lens. The fine focus knob is used once the specimen is almost in focus, or if you are on high power.
Which of these is not true when changing magnification form low power to high power?
The specimen should be in clear focus
Why is necessary to focus with the fine adjustment in high magnification?
To bring a sharp focus.
Why the specimen must be centered in the field of view on low-power before going on 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.
