GATE Civil Engineering (CE) 2019 Shift 2 Solved Paper

The critical bending compressive stress in the extreme fibre of a structural steel section is $1000\mathit{M}\mathit{P}\mathit{a}$. It is given that the yield strength of the steel is $250\mathit{M}\mathit{P}\mathit{a}$, width of flange is 250 $\mathit{m}\mathit{m}$ and thickness of flange is $15\mathit{m}\mathit{m}$. As per the provisions of IS: $800-2007$, the non-dimensional slenderness ratio of the steel cross-section is