Answer:
1.01 × 10⁵ Pa
Explanation:
At the surface, atmospheric pressure is 1.013 × 10⁵ Pa.
We need to find the total pressure on the air in the lungs of a person to a depth of 1 meter.
Pressure at a depth is given by :
[tex]P=\rho gh[/tex]
Where
[tex]\rho[/tex] is the density of air, [tex]\rho=1.225\ kg/m^3[/tex]
So,
[tex]P=1.225\times 9.8\times 1\\\\=12\ Pa[/tex]
Total pressure, P = Atmospheric pressure + 12 Pa
= 1.013 × 10⁵ Pa + 12 Pa
= 1.01 × 10⁵ Pa
Hence, the total pressure is 1.01 × 10⁵ Pa.
