Field of View of a Microscope
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Transcript of Field of View of a Microscope
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Specimens are measured in microns (µm)!
1 millimeter = 1000 microns (micro meters)
If this caterpillar is 20mm long, how many microns is it?
(20mm)(1000) = 20,000 microns
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Which magnification will show more space, 40X or 100X?
40X40X will show more than 100X
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Ruler at 40X
How many mm across?3mm
How many microns across?
3,000 µm
3 X 1000 = 3,000 µm across
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How many millimeters? Microns?
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High power magnification
Low power magnification=
Low power diameter
High power diameter
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400
40= 3 mm
X
(40)(3mm) = (400)(X)
120mm = 400X
120mm
400
0.3mm=
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How many microns is that?
0.3mm X 1000 = ?
300 µm
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If the field of view is 600 microns across, how far across is one specimen?
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If you can fit 6 across 600 microns, how far across is one circle?
Diameter / # of objects
600 microns/6 circles = 100 microns each
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400X
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40X100X
400X
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40X
100X
400X