Why do engineers prefer materials with a large Young’s modulus for designing columns and beams?
Materials with a large Young’s modulus are stiffer, requiring greater force to produce small deformations, which ensures better resistance to bending and stretching. As per NCERT, applying relevant law/formula with correct units and sign convention leads to They provide greater stiffness. This satisfies dimensional consistency and physical conditions given, so option D is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.