The relationship between porosity $(\eta),$ specific yield $\left(S_{y}\right)$ and specific retention
$\left(S_{\mathrm{r}}\right)$ of an unconfined aquifer is:
(A) $S_{y}+S_{\mathrm{r}}=\eta$
(B) $S_{\mathrm{y}}+\eta=S_{\mathrm{r}}$
(C) $S_{\mathrm{T}}+\eta=S_{\mathrm{y}}$
(D) $S_{\mathrm{y}}+S_{\mathrm{r}}+\eta=1$

Question ID - 156171 | SaraNextGen Top Answer

The relationship between porosity $(\eta),$ specific yield $\left(S_{y}\right)$ and specific retention
$\left(S_{\mathrm{r}}\right)$ of an unconfined aquifer is:
(A) $S_{y}+S_{\mathrm{r}}=\eta$
(B) $S_{\mathrm{y}}+\eta=S_{\mathrm{r}}$
(C) $S_{\mathrm{T}}+\eta=S_{\mathrm{y}}$
(D) $S_{\mathrm{y}}+S_{\mathrm{r}}+\eta=1$