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Reianna Shakil L6EFBiology03/10/12


The preparation of specimens for microscopes can be drastic, and can produce artefacts.
Artefacts are things you see under a microscope, but aren't actually there in real life. This
could be due to something like an air bubble.

Magnification refers to how much bigger the image…

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Reianna Shakil L6EFBiology03/10/12

Industrially, the electron microscope is often used for quality control and failure analysis.
Modern electron microscopes produce electron micrographs, using specialised digital
cameras or frame grabbers to capture the image.

Scanning electron microscope (SEM)

A scanning electron microscope (SEM) is a type of electron microscope that produces…

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Reianna Shakil L6EFBiology03/10/12

5 Resolving power 0.1-0.2 nm. Resolving power 200-300 nm.
6 Image is coloured (natural colour of Image is black and white.
object is seen).


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