The pressure of a fluid varies with depth h as P = PQ+pgh, where p is the fluid density. This expression is associated with

A Pascal\u2019s law
B Newton\u2019s law
C Bernoulli\u2019s principle
D Archimedes\u2019 principle

Correct Answer: Pascal\u2019s law

Pascal's law is a principle in fluid mechanics that states that a pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.

This principle is stated mathematically as: P= P + rgh

 

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