KCET2019PhysicsMechanical Properties of Solids
A wire is stretched such that its volume remains constant. The Poission's ratio of the material of the wire is
Options
- A( 0.25 )
- B( 0.50 )
- C( -0.25 )
- D( -0.50 )
Correct answer
B. ( 0.50 )
Step-by-step solution
Poisson's ratio of a stable, isotropic, linear elastic material lies in the range -1 < < 0.5 , theoretically. For most of the materials < 0.5 . This is because, moduli of elasticity should have positive values. Negative Poisson's ratio in DESIGNED materials and in some anisotropic materials has been observed. For most of the materials < 0.5 . option (B) is correct.