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- Robert Hooke was the scientist who gave Hooke’s law.
- Hooke’s law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.
- Consider a scenario where we apply external force to the body. As a result stress develops in the body due to this stress there will be a strain produced in the body which implies that there will be some deformation in the body.
- Because of stress, strain is produced.
- According to Hooke’s law, if strain increases the stress will increase and vice-versa.
- The Hooke’s law is applicable to all elastic substances.
- It does not apply to plastic deformation.
- Mathematically :
- stress ∝ strain
- stress = k × strain
- Where k is the proportionality constant and is known as modulus of elasticity.
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