Statement: Within elastic limit, stress is directly proportional to strain.
Explanation:
1. According to Hooke’s law, Stress-Strain
This constant of proportionality is called modulus of elasticity.
2. Modulus of elasticity of a material is the slope of stress-strain curve in elastic deformation region and depends on the nature of the material.
3. The graph of strain (on X-axis) and stress (on Y-axis) within elastic limit is shown in the figure.
