Which of the following statements best defines gauge pressure in a fluid?
PHYSICS · Single correct · CBSE · Physics · Mechanical Properties of Fluids · Mechanical Properties of Fluids
Problem
Which of the following statements best defines gauge pressure in a fluid?
(a) It is the sum of atmospheric pressure and hydrostatic pressure, Pgauge=Patm+ρgh.
(b) It is the total pressure measured relative to a perfect vacuum.
(c) It is the pressure measured relative to atmospheric pressure.
(d) It is always equal to ρgh regardless of the surrounding pressure.