Given,
Pressure, P=Patm+ρgh
Where,
h= Depth of water =10m
ρ= Density of water =1000kgm−3
Patm= Atmospheric pressure
P=Patm+1000×9.8×10=(Patm+98000)pa
Hence, pressure at depth10mis (Patm+98000)pa
The formula used to find the pressure on a swimmer h metres below the surface of a lake is: (where Pa is the atmospheric pressure.)