GATE2015-2-19

Question

The relationship between porosity $(\eta)$, specific yield $(S_y)$ and specific retention $(S_\tau)$ of an unconfined aquifer is:

• A. $S_y+S_\tau = \eta$
• B. $S_y+ \eta = S_\tau$
• C. $S_\tau+ \eta = S_y$
• D. $S_y+ S_\tau + \eta =1$