Physics 9702 · AS & A Level · Errors and uncertainties

Errors and uncertainties — practice question

The following two measurements are given for a solid sphere. mass $= (32.5 \pm 0.1)\,\text{g}$ diameter $= (1.87 \pm 0.04)\,\text{cm}$ These measurements are then used to work out the sphere’s density. What is the percentage uncertainty in the density?

  • A$2.4\%$
  • B$4.6\%$
  • C$6.1\%$
  • D$6.7\%$

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