Q.
The pressure of confined air is $p$. If the atmospheric pressure is $P$, then
Mechanical Properties of Fluids
Solution:
Pressure at point $A=P$ (Hydrostatic paradox)
and $P+\rho_{w} g h=$ pressure at $A=p$
$\Rightarrow P=P-\rho_{w} g h$
So, $P < P$
