Microscopes

Question 1

What is an eyepiece graticule?

Answer 1

Glass disc fitted into the eyepiece of the microscope

Question 2

What is a stage micrometer?

Answer 2

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

Question 3

How do you use an eyepiece graticule?

Answer 3

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

Question 4

Benefits of a light microscope over electron microscope?

Answer 4

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

Question 5

What are artefacts?

Answer 5

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