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The specific yield Sγ is given by _______

(a) (Vwy+V)*100

(b) (Vwy-V)*100

(c) (Vwy/V)*100

(d) (Vwy*V)*100

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This interesting question is from Well Hydraulics topic in chapter Well Hydraulics of Geotechnical Engineering I

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The correct option is (c) (Vwy/V)*100

For explanation: The specific yield Sγ of an aquifer is defined as the ratio of volume of water drained by gravity Vwy to the total volume V. It is expressed as percentage. The specific yield Sγ is an indication of the water yielding capacity of an unconfined aquifer.

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