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Subject - Physics:

Basics

MCQ - 56-10523

Question:

The pressure exerted by a column of mercury 76 cm high and at 0°C is called

  1. 1 atmosphere
  2. 1 Newton per square meter
  3. 1 Pascal
  4. 1 Newton per square meter

Correct Answer: A

Explanation:

The standard atmosphere (atm) is a unit of pressure equal to 101325 Pa or millibars. Equivalent to 760 mmHg (torr), 29.92 inHg, 14.696 psi. (The pascal is a newton per square meter or in terms of SI base units, kilogram per meter per second-squared.)

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