Physics 5054 · O Level · Physical quantities and measurement techniques

Physical quantities and measurement techniques — practice question

To measure the diameter and the length of a thin wire, about $50\ \text{cm}$ long, as accurately as possible, which instruments are the best to use?

  • Adiameter: micrometer, length: rule
  • Bdiameter: micrometer, length: vernier calipers
  • Cdiameter: rule, length: tape
  • Ddiameter: vernier calipers, length: rule

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