The minimum depth of the beam should be

Question

A cantilever of length 1.2 m carries a concentrated load of 12 kN at the free end. The beam is of rectangular cross-section with breadth equal to half the depth. The maximum stress due to bending is not to exceed 100 N/mm². The minimum depth of the beam should be            

(a) 120 mm                     (b) 60 mm

(c) 75 mm                       (d) 240 mm