Correct Answer - Option 4 : Stiffness
Explanation:
Stiffness:
- The stiffness of a material is the resistance offered to deformation, below the elastic limit.
- A material with a high value of Young’s modulus E is stiffer than the material with a lower value of Young’s modulus.
- Small values of E indicate flexible materials and a large value of E reflects stiffness and rigidity.
Ductility:
The property of the material that allows it to be drawn into wires or elongated before failure is known as ductility.
Elasticity:
The elasticity of a metal is its power of returning to its original shape after the applied force is released. A properly heat-treated spring is a good example of elasticity.
