A concentrated load of $500 \mathrm{kN}$ is applied on an elastic half space. The ratio of the increase in vertical normal stress at depths of $2 m$ and $4 m$ along the point of the loading, as per Boussinesq's theory, would be
A concentrated load of $500 \mathrm{kN}$ is applied on an elastic half space. The ratio of the increase in vertical normal stress at depths of $2 m$ and $4 m$ along the point of the loading, as per Boussinesq's theory, would be