An elevated cylindrical water storage tank is shown in the figure. The tank has inner diameter of 1.5 m. It is supported on a solid steel circular column of diameter 75 mm and total height \( L \) of 4 m. Take, water density = 1000 kg/m\(^3\) and acceleration due to gravity = 10 m/s\(^2\).
\includegraphics[width=0.25\linewidth]{image37.png}
\[
\text{If elastic modulus (E) of steel is 200 GPa, ignoring self-weight of the tank, for the supporting steel column to remain unbuckled, the maximum depth (h) of the water permissible (in m, round off to one decimal place) is \(\underline{\hspace{1cm}}\).}
\]