FOCUS
Focus
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A
The objectives on what I have observed is.... it able us to see the tested specimen that is in the mouthpieceof the microscope and contains mirror inside ...
They are used to move around stuff in the specimen so that you can see the inside of it clearly.
When viewing a specimen through a hand lens, you can see in slightly greater detail than your naked eye, but you may not be able to see micro organisms. With a microscope, you can see things in MUCH greater detail, and you can see micro organisms. With a hand lens, you cannot change the power of magnification, while with a microscope, you can change the power of the magnification. With a hand lens, only one lens is used to magnify an object, while a compound microscope uses two lenses (one in objective lens, one in eyepiece). With a hand lens, you can view a specimen from far away, while an objective lens has to be fairly close to a specimen in order to view it clearly. With a hand lens, you can simply move your hand forward, or backward, to focus on an object. With a microscope, a very complex mechanism is used in order to portray some sort of depth while viewing. This is adjusted by using a coarse, and a fine adjustment knob.
phenyle blue was a common dye used in biology when I was in college. You need to check to see what the particular item you are wanting to look at will react with first, though.
To examine it under the microscope, the specimen needs to be illuminated by either a light underneath or a stream of electrons. If the specimen is too thick, and light or electrons cannot penetrate it, the scientist will be unable to see any detail.
focus
It will enable you to see the specimen as accurately as possible - and change the microscope to view certain elements more clearly.
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Coverslip is not placed on a microscope but on the stained specimen on slide . This protects objective lens of microscope from getting stain from a wet mount . It also protects permanent slide .
microscope light illuminates the specimen so that you can see it
Specimen is what is on slide of microscope while image is what you see
It allows you to see the specimen.
to see micro organism specimen
It allows you to see the specimen.
So that we can protect the microscope and see the specimen properly.
Field of view
they are relatively smaller, electron ones are biggerthey are easy to usethey allow you to see coloured images, electron ones don'tyou can observe live specimen, specimen has to be dead with electron microscopesi was trying to view the answer in relation to transmmission