Subject :$-$ Earth Science.

Topic:$-$Permeability

In a falling head test, the initial head level is $100$ cm and the head level after $100$

seconds is $10$ cm$.$ The area of cross$-$section of stand$-$pipe is $10$ cm$2,$ and the area of cross$-$section of soil sample is $100$ cm$?.$ Find the permeability of soil sample if the length of sample is $20$ cm$.$

In a falling head test, the initial head level is $100$ cm and the head level after $100$

seconds is $10$ cm$.$ The area of cross$-$section of stand$-$pipe is $10$ cm$2,$ and the area of cross$-$section of soil sample is $100$ cm$?.$

Find the permeability of soil sample if the length of sample is $20$ cm$.$