# Questions & Answers of Euler’s Theory of Columns

Question No. 27

Consider a steel (Young’s modulus E = 200 GPa) column hinged on both sides. Its height is 1.0 m and cross-section is 10mm×20mm. The lowest Euler critical bucking load (in N) is _______.

Question No. 23

For a long slender column of uniform cross section, the ratio of critical buckling load for the case with both ends clamped to the case with both ends hinged is