Microscope
What is the low magnification?
4x
What are the four magnification levels on a microscope?
4x 10x 40x 100x
0.5 mm = _____ μm
500 μm
250 μm = _____ mm
0.25 mm
1000 μm= ______ mm
1 mm
10000 μm = _____ mm
10 mm
1 mm= _____ μm
1000 μm
What is the oil immersion magnification?
100x
What is the middle magnification?
10x
3 mm= _____ μm
3000 μm
What is the high dry magnification?
40x
If the diameter of field of view of a light microscope at 40x magnification is 6000 micrometer (microns), what would be the field of view at 400x magnification? (m1d1=m2d2)
40x6000μm=400x x=40.6000μm/400 x=600μm
Why are microscopes important for studying biological specimens?
Biological molecules are made of cells. Cells are microscopic to the eye. Microscopes allow us to see things much closer.
What changes occur when you go from lower to higher magnification?
Increase in size Light intensity decreases Field of View decreases Depth of field decreases Resolution increases
What is the advantage of observing a specimen at total magnification of 400x?
The image is clearer
What is the disadvantage of observing a specimen at total magnification of 40x?
The magnification and resolutions are smaller
What is the advantage of observing a specimen at total magnification of 40x?
You can see more of your specimen
What is the disadvantage of observing a specimen at total magnification of 400x?
You see less of the specimen
What does oil immersion mean?
the specimen must have a layer of specific oil on top when under the 100x magnification