ExpertEasy1 markMultiple Choice
AQA GCSE · Question 04.1.2 · Cell Biology
The diagram shows a simplified microscope.
What is the function of part B?
The diagram shows a simplified microscope.
What is the function of part B?
Answer options:
A.
To adjust the focus of the microscope
B.
To direct light into the viewer's eye
C.
To hold a slide in place
D.
To magnify the image of a specimen
E.
To support the microscope
How to approach this question
Identify part B on the diagram. It is pointing to the mirror at the base of the microscope. What is the purpose of this part in a light microscope?
Full Answer
B.To direct light into the viewer's eye✓ Correct
To direct light into the viewer's eye
The parts of the microscope shown are:
- **A: Focus knobs.** These are used to move the stage up and down to bring the specimen into focus.
- **B: Mirror/Light source.** This directs light up through the specimen on the slide so that it can be seen. Without a light source, the image would be dark.
- **C: Objective lens.** This is one of the lenses that magnifies the image of the specimen.
Common mistakes
✗ Confusing the function of the mirror with magnification or focusing.
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