microscopes and magnification
- Created by: GraceYoung
- Created on: 21-08-18 12:29
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- microscopes and magnification
- using microscopes
- before microscopes were invented 350 years ago, people could not see the cells in organisms.
- magnification allows people to see plant, animal and bacterial cells, and the structure inside them.
- as microscopes have developed over time we have been able to see more of the structure of cells
- Microscope types
- light microscopes
- light microscopes are used to study living cells and for regular use when relatively low magnification and resolution is enough.
- uses light to magnify objects
- the greatest possible magnification is about x2000
- electron microscopes
- uses electrons to magnify objects
- this makes it possible to magnify objects up to x10 million
- objects are more clear and more detailed than when using a light microscope.
- light microscopes
- Components of light microscopes
- eye piece
- objective lense
- coarse focus
- fine focus
- arm
- stage
- stage clip
- condensor
- mirror
- Magnification
- Magnification of the microscope=magnification of eye piece x magnification of objective
- using microscopes
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