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When aiming a pistol the eye can only focus on one object at a time what should focus on?
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Why should you move the stage away from the objectives to focus on an object rather than moving them towards each others?
Because it is possible for you to break the objective or the lenses
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.
When viewing an object through the high-power objective of a microscope not all of the objeect may be in focus why?
The object may be 3D. If it is, not everything inside the object will be focussed. For example, if you look at a plant cell, the focus must be changed to look at the different organelles.
What word is used to indicate if object is in focus at low power it will also be in focus at high power?
parfocal
Why is it essential that always focus away from object when looking into microscope?
In the end you will have to look into it, but at the start, when everything is far out of focus there is a real danger that as you try to find the focus you will grind the lower (objective) lens into the object, possibly destroying it, and damaging the lens at the same time.
Why should you not use the fine focus to bring an object into view on a microscope?
Simply because the fine focus moves too quick to get the object focused. Chances are you will miss the focus point.
Why do you close one eye when you aim for a distant object?
Keeping both eyes open, one can only focus on ojects at a particular distance from the eye at a time. By focus I mean that an object on which one has attention is visible clearly, and objects at other distances and positions appear blurred and TWO in number (see stereovision due to two eyes). This creates confusion while aiming, so by closing one eye, there is only a single image of an object, hence the two aiming sights can be aligned well with the target.
why should preliminary focusing of microscope be done upward?
It will bring an object into focus..
What is touch focus?
In touch focus devices, the user can select which part of the image the camera should focus on by touching the corresponding object in the viewfinder. Touch focus is available only in cameras with a touch screen.
How can you develop Telekinesis?
You must learn to focus your mind enough to be able to focus on a single object (Without your mind wandering). After that, you imagine the object floating, or moving, and focus on that. With enough practice, you should be able to lift small objects. The same thing is true for mind controll.
How do you focus a Beeman 4x32 scope?
Select an object about 50 yards away, then use both the front and rear ring to focus the object into view.
Where should the object be placed in front of a concave mirror to form a virtual and magnified image?
between the center of curvature and focus
What should you do first to bring the object in focus on a microscope?
Never touch the very small dial first. You want to work your way from big to small on the dials. The very large one had a broad focus, and as you get smaller, the focus is clearer
Which element of a scene does the cinematographer most often control?
[object Object]
How does the eye focus on an object?
by moving and looking at it
What object using a directrix and a focus?
parabola
What does it mean if an image is brought into focus?
it means the focus allows us to focus the lens to see a clearer view of an object
