\begin{tabular}{|l|l|}
\hline Q.16 & $\begin{array}{l}\text { The effective stiffness of a cantilever beam of length } L \text { and flexural rigidity } E I \\
\text { subjected to a transverse tip load } \mathrm{W} \text { is }\end{array}$ \\
\hline
- & $\frac{3 E I}{L^{3}}$ \\
\hline - & $\frac{2 E I}{L^{3}}$ \\
\hline - & $\frac{L^{3}}{2 E I}$ \\
\hline - & $\frac{L^{3}}{3 E I}$ \\
\hline
\end{tabular}