Hydrostatic Pressure
Easyphysics
Pressure at depth h in fluid density ρ (neglect variation) is:
Select the correct option:
Solution
Incorrect! Answer:
ρ g h
Hydrostatic stress (pressure) increases with depth due to the weight of the fluid column above. For an incompressible fluid: P=Pabove+ρgh
- If we consider the pressure relative to the surface (gauge pressure), it is simply P=ρgh.
- ρ: Fluid density
- g: Acceleration due to gravity
- h: Depth below the surface This law forms the basis for Pascal's principle and the operation of hydraulic systems.
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About This Question
- Subject
- physics
- Chapter
- properties of solids and liquids
- Topic
- hydrostatic pressure
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
ρ g h
Hydrostatic stress (pressure) increases with depth due to the weight of the fluid column above. For an incompressible fluid: P=Pabove+ρgh
- If we consider the pressure relative to the surface (gauge pressure), it is simply P=ρgh.
- ρ: Fluid density
- g: Acceleration due to gravity
- h: Depth below the surface This law forms the basis for Pascal's principle and the operation of hydraulic systems.
This easy difficulty physics question is from the chapter properties of solids and liquids, covering the topic of hydrostatic pressure. It appeared in the 2025 exam.
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