alleryStart learning →Slenderness ratio of column =
AMass/length
BRandom
CEffective length / least radius of gyration = L_e / r_min
DL/A
Answer & Solution
Correct answer: C. Effective length / least radius of gyration = L_e / r_min
Slenderness ratio λ = L_e/r where r = √(I/A) = radius of gyration.
High λ → buckles before yield (long column, Euler).
Low λ → crushes before buckles (short column).
**IS 456:** short column if λ < 12 in both directions; otherwise long.
**Steel columns:** per IS 800.
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