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Physics

The normal atmospheric pressure is :

  1. 76 m of Hg
  2. 76 cm of Hg
  3. 76 Pa
  4. 76 N m-2

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Answer

76 cm of Hg

Reason — As we know that, barometric height at normal temperature and pressure at sea level is 76 cm of Hg and barometric height is the measure of the atmospheric pressure. Hence, normal atmospheric pressure = 76 cm of Hg.

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