Physics 5054 · O Level · Physical quantities and measurement techniques

Physical quantities and measurement techniques — practice question

A micrometer is being used to find the diameter of a length of wire. What reading does the micrometer display?

  • A$7.25\text{ mm}$
  • B$7.75\text{ mm}$
  • C$10.25\text{ mm}$
  • D$25.77\text{ mm}$

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