According to Euler's column theory, the crippling load of a column is given by $${\text{p}} = \frac{{{\pi ^2}{\text{E}}I}}{{{\text{C}}{l^2}}}.$$ In this equation, the value of ‘C’ for a column with both ends hinged, is
A. $$\frac{1}{4}$$
B. $$\frac{1}{2}$$
C. 1
D. 2
Answer: Option C
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