answersLogoWhite

0


Best Answer

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.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar
More answers
User Avatar

Latasha Cortes

Lvl 2
2y ago

The coarse adjustment knob should never be used when viewing in high power with a compound microscope. When in high power, use the fine adjustment (the knob smaller than the coarse adj.) to more accurately focus on the subject.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

You never use a coarse adjustment knob under high power because it moves the stage up or down which could cause damage

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Which focusing knob do you never use under high power?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What are the dangers of using the coarse-adjustment knob when focusing under high power?

It is possible to cause damage to the microscope or lenses when using the coarse focus- such as pushing the lens through the glass slide.


Why must initial focusing of an object be under the low power objective and not under the high power objective?

Low power objective is like our eye if we want to see we can just see normally but if we want to see something very small but want to see properly at that particular part then we always go for some lens of something powerful. That's the same thing when we want to know something deeply we go for high power microscope to read a more detailed study of a particular part of object under the microscope.


When focusing a specimen you should always start with which objective?

Ocular Lens (eyepiece) or Stage


How does the working distance change when you go from low power to high power magnification?

it is how you operate the microscope just adjust he course adjustment knob for focusing the fine adjustment knob


What is the lens that is used to find the specimen on a microscope?

You use the low power lens to find the specimen with a microscope. Once you have found the specimen on low power, you can switch to high power for greater magnification. Just be sure to use only the fine adjustment knobs for focusing on high power so the high power objective won't hit the slide.


How do you view specimen under high power on a microscope?

the same way as under low-power on a microscope: carefully


What is the name of the adjustment knob that moves the body tube for focusing with the high-power objective lens?

I assume you would use the fine adjustment knob for high power objectives.


What is the difference between the field of view under high and low power?

You can see less under high power because it focuses on a smaller part of the specimen, but in more detail than low power.


Does the switch from low power to high power change the position of the image under microscope?

No it does not


Are both hair focused under high power magnification?

No.


Which activity might lead to damage of a microscope and specimen?

using the course adjustment to focus the specimen under high power


Why is slide centered before moving to higher power on microscope?

When you switch to high power, you are focusing on a very small part of the large picture. If you center your object under low power (preferably by the little black arrow most microscopes have) you will see the object you are looking at 100% of the time. If you do not center your object, the object will end up being off to the side of what you are looking at in your field of view. It's kind of like zooming in on a map on the internet, you have to center what you want to zoom in on or else you will zoom in on an area you did not want to look at.