Topic 1 - Light Vs Electron Microscopes

Question 1

Name 3 features of a light microscope

Answer 1

• illuminating source is the light
• coloured image
• magnification of 500x to 1500x

Question 2

Name 3 features of an electron microscope

Answer 2

• illuminating source is a beam of electrons
• magnification of 100,000x to 300,000x
• black and white image

Question 3

What’s the equation for magnification?

Answer 3

Magnification = drawing size/ real size

Question 4

Name the 10 parts of a microscope

Answer 4

1 stage
2 coarse focusing knob
3 fine focusing knob
4 eyepiece lens
5 objective lens
6 light source
7 base
8 arm
9 body tube
10 microscopic slide