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Why should you focus on low power before switching to high power?
Wiki User
∙ 9y ago
You should first focus the slide on low power before you switch it to high power because it is easier to find the specimen on the slide. When you switch to a higher power, the field of view gets zoomed in.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agofirst, because you don't want to break the slide.
but usually because it's easier to find what you want on the slide and also easier to focus. use the macro/course focus, change to a high power like 40x, and then use the fine focus.
for all the above reasons, this can be critical if you want to see something in a 100x objective with oil immersion.
Wiki User
∙ 11y agoIt is not strictly necessary, but it is a good practice because suddenly switching from low to high power can be disorienting. Going slowly from one magnitude to the next prevents you from getting confused at what you are looking at or having to search and refocus a lot to find what you are looking for.
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Which of these is not true when changing magnification form low power to high power?
The specimen should be in clear 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.
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.
Why must the specimen be centered before switching from low power to high power?
Because high power takes up a much smaller area, and you may not be able to find the specimen if it's off to one side. C:
Why important to start focusing the lowest power objective?
You use the low power objective lens first to get your sample centered in the field of view.
What should you expect to change after switching to a higher power?
Fine focus
Why is it important that the object is centered in the field of view before switching to a higher power objective?
WHY IS IT IMPORTANT THAT THE IMAGE IS CENTERED IN THE FIELD OF VIEW BEFORE SWITCHING TO A HIGHER POWER
Why must the specimen be centered before switching to high power on a microscope?
I don’t know
When switching from low power objective to high power objective should you open or close diaphragm?
close
When switching from low-power objective to high-power objective should you open or close to diaphragm?
close
What does low power objective do?
The low power objective lens is usually a 10x lens and it is used to orient the specimen and get it focused before switching to a higher power lens.
Why is it helpful to view objects under low power before switching to high power?
You can see what you are doing better in low power in high power, so you can center the object first before you switch to high power to make minor adjustments.
Soft switching in power electronics?
It is to open the power-switch at zero current to minimize the looses during switching.
What does low power objective len do?
The low power objective lens is usually a 10x lens and it is used to orient the specimen and get it focused before switching to a higher power lens.
When beginning to focus a microscope what lens should you use?
lowest power
When beginning to focus the lowest-power lens should be used?
true
What is a DVE switching adapter?
A switching power supply adapter from Dee Van Electronics.
