Explanation:
Within elastic limit the stress vs. strain curve of a material follows Hooke’s Law.
Or, According to Hooke’s Law, whenever a material is loaded within elastic limit, Stress is directly proportional to strain.
See Also
Know About The Strain Energy Formula12.3 Stress, Strain, and Elastic Modulus12.4 Elasticity and Plasticity | University Physics Volume 1In the load-extension graph a wire, the elastic limit lies between the pointsQ and RP and QP and RNone of theseAccording to Hooke’s Law we have,
Stress∝ Strain
i.e. σ ∝ϵ or σ = E ϵ
where, σ = stress (N/m2), ϵ = strain (m/m),E = Young’s Modulus of Elasticity (N/m2).
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