A tall silo having height to diameter ratio of 2 is holding 480 tons wheat of bulk density $960 \mathrm{~kg} \mathrm{~m}^{-3}$. The angle of internal friction for wheat is $25^{\circ}$ and for wheat and wall surface is $24^{\circ} .$ Applying Airy formula, the maximum lateral pressure in $\mathrm{kPa}$ at the bottom of the bin section is
(A) 40.24
(B) 41.79
(C) 42.83
(D) 42.92
A tall silo having height to diameter ratio of 2 is holding 480 tons wheat of bulk density $960 \mathrm{~kg} \mathrm{~m}^{-3}$. The angle of internal friction for wheat is $25^{\circ}$ and for wheat and wall surface is $24^{\circ} .$ Applying Airy formula, the maximum lateral pressure in $\mathrm{kPa}$ at the bottom of the bin section is
(A) 40.24
(B) 41.79
(C) 42.83
(D) 42.92