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Because if you use coarse adjustment, the body tube of the microscope (the part that moves up and down when you turn the knobs) will hit the microscope slide and cause the slide to break/crack. It moves the tube very quickly . You also run the risk of damaging the high power lens when it hits the slide. The fine adjustment only moves the tube a teeny tiny bit and very slowly so you don't have a great of a risk of damaging the slide or lens. The fine adjustment also helps to focus slowly so you don't miss the object you're trying to see.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoThe fine adjustment does not move as far up and down as the coarse adjustment, so if you are using high power, the fine adjustment will prevent the objective from hitting the slide and either damaging the slide, the objective, or both.
Wiki User
∙ 13y agoTo allow you to see the object that you are magnifying clearly.
Wiki User
∙ 14y agoBecause it can break the lens
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The fine adjustment knob is used to focus an image only on what power?
AnswerFine adjustment knobs can be used on any of the different power lenses. Fine adjusting knobs help in clarifying a partially focused image.
Which focusing knob do you never use under high power?
The coarse adjustment knob should never be used when viewing in high power with a compound microscope. When in high power, use the coarse adjustment (the knob smaller than the coarse adj.) to more accurately focus on the subject.
What must NEVER be used when using the medium or high power objectives?
The coarse adjustment because it moves the objective much farther than the fine adjustment knob, and you could hit the slide with the objective and damage the lens and/or the slide.
When using the high power objective which focus knob do you use?
The fine adjustment knob is used with the power objective on the microscope. Since the objective is already at the highest objective possible for that microscope, using the coarse adjustment knob would focus to much on the object making the details harder to read. Using the fine adjustment knob, you are able to see the fine details within the object or organism you are studying. The higher the power, the finer the knob and the lower the objective, the coarser the knob and objective.
What is used to focus when using the scanner and low objective?
The coarse and fine adjustment knobs can be used with the low power objective.
What adjustments knob is used with high power?
Fine adjustment knob
Which adjuster is used in high power?
The fine adjustment knob is the adjuster that is used in high power. It provides better control over the depth movement adjustment of the microscope.
What is the function of low power adjustment?
it is used as fine adjustment to increase resolution of microscope
Why cant the coarse adjustment knob be used on high power lenses?
The coarse adjustment knob is used for making major changes to the focus, and is therefore too inaccurate to use at high powers, where only a very fine adjustment can drastically change the clarity of the picture you see.
The fine adjustment knob is used to focus an image only on what power?
AnswerFine adjustment knobs can be used on any of the different power lenses. Fine adjusting knobs help in clarifying a partially focused image.
Which focusing knob do you never use under high power?
The coarse adjustment knob should never be used when viewing in high power with a compound microscope. When in high power, use the coarse adjustment (the knob smaller than the coarse adj.) to more accurately focus on the subject.
Which knob is used to get a clear image on a microscope?
You use the Fine Adjustment Knob to give a very clear image on the microscope, mostly used on high power magnification.
What adjustment knob is used to focus with high power?
coarse
The fine adjustment knob is used to focus an image on what powers?
AnswerFine adjustment knobs can be used on any of the different power lenses. Fine adjusting knobs help in clarifying a partially focused image.
What part of the microscope should you used to focus the image when using high power objective lens?
First of all, one should never call it high power, it is morecommonly called the "high objective", yet that is not what this question is asking. To answer the question: You use the fine adjustment knob. This knob should be located near the coarse adjustment knob, on the opposite side of the microscope (at the same height as the coarse adjustment knob), or even as a separate knob protruding from the coarse adjustment knob. The fine adjustment knob is smaller in size. You should never, ever use the coarse adjustment knob under the high objective, you could scratch the microscope slide, cover slip, high objective lens, or in a worst case scenario break the high objective lens.
What must NEVER be used when using the medium or high power objectives?
The coarse adjustment because it moves the objective much farther than the fine adjustment knob, and you could hit the slide with the objective and damage the lens and/or the slide.
When using a microscope which adjustment knob can be used on high power?
the right side
