Critical load for a column fixed at both the ends is Pcr. If top end o – McqOptions

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1.	Critical load for a column fixed at both the ends is Pcr. If top end of the column is allowed to rotate, then critical load of the column will be:
A.	4Pcr
B.	2 Pcr
C.	\(\frac{1}{2}{{\rm{P}}_{{\rm{cr}}}}\)
D.	\(\frac{1}{4}{{\rm{P}}_{{\rm{cr}}}}\)
Answer» D. \(\frac{1}{4}{{\rm{P}}_{{\rm{cr}}}}\)

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