Where is pressure greater, 20 m below the sea level or 35 cm below?

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Solution

Depth of water, h₁₌ 20 m
Density of water, $ρ$ = 1000 kg/m³
Pressure of the water, P = h₁ $ρ$ g
P = 20 $\times 1000 \times 9.8 =$ 196000 Pa

Depth of the water, h₂₌35 cm
= 35/100 m
= 0.35 m
Density of water $ρ$ = 1000 kg/m³
Pressure of the water, P = h₂ $ρ$ g
P = $0.35 \times 1000 \times 9.8 = 343 Pa$

It is clear that at 35 cm below the sea level, the pressure will be lower.

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