BI-937
Measuring length
Biology · Secondary 3 · Easy · Measuring length
A student observes a cheek cell under a light microscope using the high power objective. The diameter of the field of view is 0.40 mm. The cheek cell spans half the diameter of the field. What is the approximate length of the cheek cell in micrometres (µm)?
(1 mm = 1000 µm)
(1 mm = 1000 µm)
- 20 µm
- 40 µm
- 200 µm
- 400 µm
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