Physics 0625 · IGCSE · Pressure

Pressure — practice question

The diagram illustrates a basic mercury barometer. Which length is measured to determine the value of atmospheric pressure?

  • A$12\,\text{cm}$
  • B$74\,\text{cm}$
  • C$86\,\text{cm}$
  • D$100\,\text{cm}$

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