Water pressure 50 meters below the surface of the ocean salt

Water pressure 50 meters below the surface of the ocean salt water is ___________________ the pressure 50 meters below the level of fresh water lake with open surface at sea level.

A) less than
B) greater than
C) equal to

Solution

Solution :

The answer is B. The pressure at 50m deep of ocean water is greater than 50m Deep of fresh water.

The reason for this is

We have

P= rho* g* h

Rho= density, g= gravity and h= height

Here density of sea water is greater than the density of fresh water and all the other proerties are same hence the pressure will be more beneath the sea water than fresh water surface.