A T.V. tower has a height of $100 \mathrm{~m}$. The average population density around the tower is $1000…
A T.V. tower has a height of $100 \mathrm{~m}$. The average population density around the tower is $1000 \mathrm{~km}^{-2}$ and radius of the earth is $6.37 \times 10^6 \mathrm{~m}$. The population covered is