PHYSICS

JAMB 2011 - Question 10

Physics 2011 JAMB Past Questions - Question 10: I. Density of liquidII. Depth below the surface of the waterIII. Surface are of the liquidIn which of the which of the following above will pressure be dependent ?

Choose the correct answers from the options given.
I. Density of liquidII. Depth below the surface of the waterIII. Surface are of the liquidIn which of the which of the following above will pressure be dependent ?
A:
B:
C:
D:
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Correct Answer

A

Explanation

Pressure in a fluid is primarily dependent on the depth below the surface of the fluid. This is described by a fundamental principle in fluid mechanics known as Pascal's law, which states that in a confined fluid at rest, any change in pressure applied at any point in the fluid is transmitted undiminished throughout the fluid. In other words, pressure in a fluid increases with depth.

The density of the liquid and the surface area of the liquid do not directly affect pressure in a fluid in the same way that depth does. However, the density of the liquid can indirectly affect pressure in the context of fluid dynamics when considering factors like buoyancy, but the depth is still the primary factor that directly influences pressure.

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