Microscopes Flashcards

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1
Q

What is an eyepiece graticule?

A

Glass disc fitted into the eyepiece of the microscope

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2
Q

What is a stage micrometer?

A

Used to calibrate the eyepiece graticule. It is a microscope slide which is engraved in a fine and accurate scale

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3
Q

How do you use an eyepiece graticule?

A

1- measure using the eyepiece graticule
2- calibrate eyepiece graticule against stage micrometer
3- take a number of measurements to calculate a mean

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4
Q

Benefits of a light microscope over electron microscope?

A

Can look at living things so they don’t have to be in a vacuum like electron and can produce colour images

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5
Q

What are artefacts?

A

Things that result from the way that the specimen are prepared and they are not part of the natural specimen

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