13
Match List-I with List-II:
Choose the correct answer from the options given below:
|
List - I
सूची - I
Soil Water Parameter / Instrument
List-I (Soil Water Parameter / Instrument
|
List - II
सूची - II
Physical Unit / Dimension
List-II (Physical Unit / Dimension
|
||
|---|---|---|---|
| A | Gypsum block Gypsum block | I | Soil water content / matrix suction electrical resistance Soil water content / matrix suction electrical resistance |
| B | Pneumatic potential Pneumatic potential | II | Soil water potential due to external gas/air pressure Soil water potential due to external gas/air pressure |
| C | Energy per unit mass Energy per unit mass | III | $\text{J}\cdot\text{kg}^{-1} = \text{L}^2\cdot\text{T}^{-2}$ $\text{J}\cdot\text{kg}^{-1} = \text{L}^2\cdot\text{T}^{-2}$ |
| D | Energy per unit volume Energy per unit volume | IV | $\text{J}\cdot\text{m}^{-3} = \text{Pa} = \text{M}\cdot\text{L}^{-1}\cdot\text{T}^{-2}$ $\text{J}\cdot\text{m}^{-3} = \text{Pa} = \text{M}\cdot\text{L}^{-1}\cdot\text{T}^{-2}$ |
EXPLANATION
Soil Water Dynamics
- Dimensions and Principles in Soil Physics:
- Gypsum Block: Electrical resistance sensor calibrated to determine (I) Soil water matric suction / content $\rightarrow$ (III)
- Pneumatic Potential: Component of soil water potential produced by external gas/air pressure differing from atmospheric pressure $\rightarrow$ (IV)
- Energy per Unit Mass: Potential expressed as energy divided by mass ($\text{J}\cdot\text{kg}^{-1}$), dimensionally $[L^2 T^{-2}]$ $\rightarrow$ (I)
- Energy per Unit Volume: Potential expressed as pressure ($\text{J}\cdot\text{m}^{-3} = \text{Pa}$), dimensionally $[M L^{-1} T^{-2}]$ $\rightarrow$ (II)
- Systematic Match: (A)-(III), (B)-(IV), (C)-(I), (D)-(II) corresponds to Option 3.
Correct option: (3) (A)-(III), (B)-(IV), (C)-(), (D)-(1))
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