Question

The rate of flow of water through saturated soil is governed by:

• A. Fick's law
• B. Stoke's law
• C. Darcy's law
• D. Dalton's law

Hint:

Darcy's law: \(q = -K \cdot i\).
Valid for laminar flow in saturated soil.
K = Hydraulic conductivity (cm/s or m/day).

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
This question tests knowledge of water flow through soil.

Step 2: Detailed Explanation:
Darcy's law governs the rate of flow of water through saturated soil.
Darcy's law:
\[ q = -K \frac{dH}{dx} \] where:
q = flow rate per unit area (flux),
K = hydraulic conductivity,
dH/dx = hydraulic gradient.
Other laws:
- Fick's law (A): Diffusion of solutes.
- Stoke's law (B): Settling of particles in fluids.
- Dalton's law (D): Partial pressure of gases.
Thus, Darcy's law is the correct answer.

Step 3: Final Answer:
Thus, the rate of flow through saturated soil is governed by Darcy's law.
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