Soil Mechanics and Foundation
A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is

10 mm
20 mm
None of these
40 mm

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Soil Mechanics and Foundation
Effective stress on soil

Increases both voids ratio and permeability
Increases voids ratio and decreases permeability
Decreases voids ratio and increases permeability
Decreases both voids ratio and permeability

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