NEET2026PhysicsChapterActual
A pressure sensor attached to the base of a large storage tank filled with a liquid of density 2000 kg m ⁻³ records an absolute pressure of 5.0 10⁵ Pa . Taking atmospheric pressure as 1.0 10⁵ Pa and acceleration due to gravity g = 10 m/s ² , what is the height of the liquid column in the tank?
Options
- A25 m
- B30 m
- C20 m
- D5 m
Correct answer
C. 20 m
Step-by-step solution
The absolute pressure at the base of the tank is given by the relation: P = P₀ + g h where P is the absolute pressure, P₀ is the atmospheric pressure, is the density of the liquid, g is the acceleration due to gravity, and h is the height of the liquid column. Substituting the given values: 5.0 10⁵ = 1.0 10⁵ + (2000)(10)h 4.0 10⁵ = 20000 h h = 4.0 10⁵ 2.0 10⁴ h = 20 m Answer: 20 m