SSC JE Civil Engineering 2012 Solved Paper

The equivalent length of a column of length L:
a. When both ends are fixed $=\frac{\mathit{L}}{2}$
b. When one end is fixed and other end is free = 2L
c. When one is fixed and other is pinned $=\frac{\mathit{L}}{\sqrt{2}}$
d. When both ends are pinned = L