1.

An isotropic elastic material is characterized by

A. Two independent moduli of elasticity along two mutually perpendicular directions
B. Two independent moduli of elasticity along two mutually perpendicular directions and Poisson’s ratio
C. A modulus of elasticity, a modulus of rigidity and Poisson ‘ratio
D. Any two out of a modulus of elasticity, a modulus of rigidity and Poisson’s ratio
Answer» E.


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