The equivalent length of a column of length L, having both the ends hinged, is

The equivalent length of a column of length L, having both the ends hinged, is Correct Answer L

Both ends hinged $$l = {\text{L}}$$
Both ends fixed $$l = \frac{{\text{L}}}{2}$$
One end hinged and other end fixed $$l = \frac{{\text{L}}}{{\sqrt 2 }}$$
One end hinged another end free $$l = 2{\text{L}}$$

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