Question

Where is the pressure greater in,10m or 20m below the surface of the sea?give reason

Answer 1

Pressure is greater 20m below the surface of sea , the pressure increases as you go deeper in it. For every 10m you go deeper pressures increases by 14 psi.

Answer 2

PRESSURE IS GREATER AT 20 METRES DEPTH.

But why ?

• The general expression of hydrostatic pressure at a depth 'h' from the surface of liquid is given as :

$\boxed{P = \rho \times g \times h}$

• $\rho$ is the density of liquid, g is gravity.

For constant density and gravity, we can say:

$\boxed{P \propto h}$

So, greater the depth, more will be the pressure.

• So, at 20 metres below water surface, the pressure will be higher.