8628. Which of the following column will have more buckling.
L = 40 ft, both ends fixed
L = 20 ft, both end pinned
L = 10 feet, one end fixed and on end free
L = 30 feet, one end fixed anf one end pinned
ব্যাখ্যা: (ক) both ends fixed, L = 40 ft then, L' = 0.5×40 = 20 ft
(খ) both end pinned, L = 20 ft then, L' = 1x20 = 20 ft
(গ) one end fixed and on end free, L = 10 feet, then L' = 2x10 = 20 ft
(ঘ) one end fixed and one end pinned, L=30 feet, then L' = 0.707x30 = 21.21 ft