On a stage micrometer, 1 division = 10 µm. 25 eyepiece units match 5 micrometer divisions. One eyepiece unit equals

  1. 2 µm
  2. 5 µm
  3. 50 µm
  4. 0.5 µm
Answer

A) 2 µm

5 × 10 = 50 µm ÷ 25 = 2 µm. AS & A Level Biology · Topic 1 Cell Structure · 1.1 The microscope in cell studies

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