I assume this is a question about viewing an object through a compound microscope. Always use the shortest objective lens (that is the one with the lowest magnification) first. Focus the lens and then when you want more detail or a closer view, you can simply rotate the lens turret to a longer lens and it should be nearly in focus. Use the fine focus feature to sharpen the picture. If an object is viewed in this way, the danger of scratching the high power objective by ramming it into the slide is lessened.
it is the COURSE adjustment knob
Try it any other way and you'll see. The scanning objective has the largest field of view, the greatest depth of field, and the greatest working distance. It is the most forgiving objective. It is the easiest to find the specimen and focus on it.
This is the coarse adjustment knob. This should be used before the fine adjustment knob (the smaller knob) - which is for fine focusing.
As the designation 'first' and 'second' (in this case) is purely objective (assigned by the viewer) there is no special terminology applied as both forces are exactly the same force and are known by exactly the same terms:gravitationalelectrostaticweak-nuclearstrong nuclearmagnetic
It is the first knob you should turn to bring the object into rough focus, before tinkering with the finer tuning knobs.
The objective lens and the eyepiece lens work together to magnify the image of an object in a microscope. The objective lens magnifies the image first, and the eyepiece lens further magnifies the image for viewing.
You should first use the lowest power setting of a microscope to find an object and then center it within the viewing area. Then, when you switch to the next higher magnification, your target should still be close to the center and easier to find and focus on.
When viewing specimens or objects under a microscope, it should be set to a low power first. This allows for a wider field of view that makes an object easier to locate.
The pronoun 'I' is the first person subjective; the pronoun 'you' is the second person, subjective or objective. The correct pronouns for the sentence are 'You and I'.Correct: You or I have to attend the meeting.Correct: The meeting is mandatory for you or me.The pronoun me is the first person objective pronoun, used for the object of the verb or object of a preposition.
The microscope stage should be in its lowest position to avoid damaging the objective lens when you first begin to focus on an object. Begin focusing with the coarse adjustment knob and then use the fine adjustment for finer focusing.
"Me" is in the first person, singular, objective case.
If you completely lose focus while viewing a specimen under high power, you should first move the fine adjustment knob in both directions to try and regain focus. If that doesn't work, switch back to a lower magnification objective lens, refocus the specimen, and then switch back to the high power objective to try focusing again.
When viewing specimens or objects under a microscope, it should be set to a low power first. This allows for a wider field of view that makes an object easier to locate.
There are many different microscopes currently on the market. Most of these microscopes come with different levels of magnification so that you can view an object in different ways. It is important to make sure the microscope you choose to use will have the correct maginfication you need.
When setting up a microscope, you typically start with the lowest power objective lens first, such as the 4x objective lens. This lens allows you to find and focus on the specimen at a lower magnification before switching to higher power objectives for more detailed viewing.
The main objective was to spread Christianity and try to take back the Holy Lands( Jerusalem). They had 8 crusades and all of them had about the same military objective as the first one.
The low-power objective lens (usually 4x) is always used first to locate an object on a microscope. This objective lens provides a wider field of view and a lower magnification, making it easier to find and center the specimen before moving to higher magnifications.