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The mercury column in the barometer at notational  atmospheric pressure has a height of?

Physics
JAMB 2022

The mercury column in the barometer at notational  atmospheric pressure has a height of?

  • A. 0.76 cm at see level
  • B. 760 cm at sea level
  • C. 7.6 cm at sea level
  • D. 76 cm at sea level
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Correct Answer: Option D
Explanation

The height of the mercury column serves as an indicator of atmospheric pressure. At sea level and at a temperature of 0° Celsius (C), the height of the mercury column is approximately 30 inches, or 76 centimeters. This represents a pressure of approximately 14.7 psia. The 30-inch column is used as a reference standard.

There is an explanation video available below.

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Explanation Video

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
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