State True or False.
One atmospheric pressure at sea level is equal to $760 c m$ of $H g$ .

True

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False

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Solution

The correct option is B False
Wrong statement.
The average air pressure at sea level is equivalent to the pressure produced by a column of water about 10 meters (or about 76 cm of mercury column).
$P = 10^{5} N m^{- 2}$ at sea level
density of mercury is $13600$ $k g m^{3}$
we know $P = ρ g h$
So $10^{5} = 13600 \times 9.8 \times h$
$h = 0.76 m = 76 c m$

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Similar questions

Q. One atmospheric pressure at sea level is equal to 760 cm of Hg.

At sea level, the average atmospheric pressure is equal to 76 cm of Hg.

Q. The atmospheric pressure at sea level is _____ of

H g

At sea level , the atmospheric pressure is 76 cm of Hg . If air pressure falls by 10mm of Hg per 120m of ascent, what is the hight of a hill where the barometer reads 70 cm of Hg . State the assumption made by you.

Assumption: atmospheric pressure falls linearly with ascent.

At sea level, the atmospheric pressure is 76 cm of Hg. If air pressure falls by 10 mm of Hg per 120 m of ascent, what is the height of a hill where the barometer reads 70 cm Hg. State the assumption made by you.

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State True or False.One atmospheric pressure at sea level is equal to 760 cm of Hg.

The correct option is B FalseWrong statement.The average air pressure at sea level is equivalent to the pressure produced by a column of water about 10 meters (or about 76 cm of mercury column).P=105Nm−2 at sea leveldensity of mercury is 13600 kgm3we know P=ρghSo 105=13600×9.8×h h=0.76m=76cm

State True or False.
One atmospheric pressure at sea level is equal to $760 c m$ of $H g$ .