Quesiton : Why should you always use the low-power objective lens to locate objects mounted on the slide first eve if you want to observe them with the high-powered objective lens?
Answer: To avoid fingerprints
Why should you always use the low-power objective lens to locate objects mounted on the slide first eve if you want to observe them with the high-powered objective lens?
You should use the low power lens first because it is easier to find objects on the slide at this power. When the specimen has been located using the coarse focus wheel use the fine focus wheel ...
The slide may break and/or you may damage the microscope. Why must you be careful when you are focusing with the high-powered lens? Start with the lowest objective (coarse adjustment) then adjust your focus to a better resolution with the fine adjustment.
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Quick Answer. Microscopes can be tricky to use because of the strength of their lens magnifications typically 4x 10x and 40x. The difficulty lies in trying to align the specimen in a precise position so the microscope lens can capture it and allow the user to see the specimen close up.
You should use the low power lens first because it is easier to find objects on the slide at this power. When the specimen has been located using the coarse focus wheel use the fine focus wheel to sharpen the image as much as possible.
To use the lens first make sure the specimen is in focus under the high power (40X) objective . Next move the high power objective out of position place a small drop of oil on top of the cover slip above the specimen to be viewed and move the oil immersion lens into place.
Tue Nov 01 2011 00:00:00 GMT+0530 (IST) · Best Answer: Mainly for the same reason that you zoom out if you are searching for something on Google Maps: You have a wider field of view that makes an object easier to locate . An additional feature is that the low power objective is easier to focus which reduces the risk of winding the objective lens ...
Secures the glass slide on which the specimen is mounted . As you viewed the letter "e" under the microscope how was it oriented? ... Which objective should you use to initially locate the specimen? Why ? ... Observe with low-power objective lens .
You should use the low power lens first because it is easier to find objects on the slide at this power. When the specimen has been located using the coarse focus wheel use the fine focus wheel to sharpen the image as much as possible.

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