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Barometer

The height of...

Question

The height of mercury in a barometer is $760 m m$ , then the atmosphere pressure is $[g = 9.8 {m / s}^{2}]$ :

0.101 \times 10^{5} P a

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10.1 \times 10^{5} P a

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1. 01 \times 10^{5} P a

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1.01 \times 10^{4} P a

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Solution

The correct option is C $1. 01 \times 10^{5} P a$
$P = ρ g h = 13600 \times 9.8 \times 0.760 = 1.01 \times 10^{5} P a$

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