Air creates as much pressure as created by ....... $c m$ of vertical height of mercury column in a simple barometer.

22

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36

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76

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260

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Solution

The correct option is C $76$
The height to which mercury rises in simple barometer is $76 c m$ .
This is the reason that atmospheric pressure is often expressed as $76 c m$ of Hg at sea level.

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Air creates as much pressure as created by ....... cm of vertical height of mercury column in a simple barometer.

The correct option is C 76The height to which mercury rises in simple barometer is 76cm.This is the reason that atmospheric pressure is often expressed as 76cm of Hg at sea level.

Air creates as much pressure as created by ....... $c m$ of vertical height of mercury column in a simple barometer.

The correct option is C $76$
The height to which mercury rises in simple barometer is $76 c m$ .
This is the reason that atmospheric pressure is often expressed as $76 c m$ of Hg at sea level.