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The scanning lens of a compound microscope is used whenever a new slide is viewed or when the view of the specimen in the field of a higher power lens is lost. Think of it as the "neutral" position for the lens array. The scanning lens has the greatest working distance of the lens group on the microscope and is far enough away from the slide to avoid crunching the slide (and possibly damaging the lens) when attempting to focus. Many microscopes are parfocal, meaning that once you have a focused view of the specimen with the scan lens the image will be in, or very near in, focus when you swivel to a higher power lens. Very important! If you can't find a good view at higher power, or you "lose" the specimen after trying to focus with the fine focus knob only, go back to the scanner lens. Never use the coarse focus with anything but the scanner lens in position. Not doing this is probably the number one reason slides get crunched. And everyone will know because it usually makes an unmistakable sound that reverberates all over the lab.
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What type of microscope would be best to use to look at different cells or organelles?
scanning electron microscope
When beginning to focus a microscope what lens should you use?
lowest power
Explain the difference between a light scanning and electron microscope?
A scanning electron microscope will scan the surface and an electron microscope looks inside.
What do you use to see small objects?
microscope
What type of microscope do you use on a amoeba?
A standard optical microscope would be sufficient (as opposed to a scanning electron microscope)
Which lens should you use to first look at a slide on a microscope?
The lens that you should use to first look at a slide on a microscope is a low power lens then move on to a higher power for more clarity.
Which lens on a microscope should you use first to look at a slide?
The lens that you should use to first look at a slide on a microscope is a low power lens then move on to a higher power for more clarity.
Which objective should be in place both when beginning to use the microscope?
Scanning objective
What type of microscope would be best to use to look at different cells or organelles?
scanning electron microscope
What tool would a life scientist use to get a three dimensional image of a microscopic organism?
Well her are your choices. A. CT scan B. X ray C. Scanning electron microscope D. Magnifying lens The anwser is C. Scanning Electron Microscope
When beginning to focus a microscope what lens should you use?
lowest power
When you use a scanning probe microscope do you see atoms dirctly or only indirctly?
A scanning probe microscope will not resolve an atom
Explain the difference between a light scanning and electron microscope?
A scanning electron microscope will scan the surface and an electron microscope looks inside.
What kind of lens use in microscope?
ocular lens
What type of microscope do scientists use to see an atom?
Scanning tunneling microscope
What do you use to see small objects?
microscope
What type of microscope do you use on a amoeba?
A standard optical microscope would be sufficient (as opposed to a scanning electron microscope)
