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GK QUESTION#3117

Which physical quantity is measured by a barometer?

  1. AVolume
  2. BPressureCorrect answer
  3. CDensity
  4. DViscosity
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Answer

B. Pressure

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Explanation

A barometer measures atmospheric pressure. Mercury and aneroid barometers use different mechanisms but measure the same physical quantity. Volume, density and viscosity are distinct properties.

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