Biology 9700 · AS & A Level · The microscope in cell studies

The microscope in cell studies — practice question

The diagram illustrates an eyepiece graticule and part of a stage micrometer scale as observed at $\times 100$ magnification. Which is the correct procedure for finding the value of one eyepiece graticule unit in micrometres ($\mu\text{m}$)?

  • Adivide 100 by $0.1$ then multiply by 1000
  • Bdivide 100 by $0.1$ then multiply by 1000 divided by 100
  • Cmultiply $0.1$ by 1000 then divide by 100
  • Dmultiply $0.1$ by 1000 then divide by 100 then divide again by 100

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