$($c$)$ A granular soil deposit is $7m$ deep over an impermeable layer. The ground water table $4m$ below the ground surface. The deposit has a zone of capillary rise of $1\mathrm{.}2m$ with a saturation of $50\%$ plot the variation of total stress, pore water pressure and effective stress with the depth of deposit. Take $e=0\mathrm{.}6$ and $G=2\mathrm{.}65.$