Question

Vi) State hooke’s law. Define Poisson’s ratio. State the SI unit Dimensions of strain.​

Answer 1

Explanation:

Hooke's law is a law of physics that states that the force needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is, where k is a constant factor characteristic of the spring, and x is small compared to the total possible deformation of the spring.

Answer 2

Answer:

Hooke's law, law of elasticity discovered by the English scientist Robert Hooke in 1660, which states that, for relatively small deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load.

Poisson's ratio of a material defines the ratio of transverse strain (x direction) to the axial strain (y direction).

Derived quantity   Symbol      Description  SI derived unit  Dimension  

    Strain        ε      Extension per unit length    unitless         1

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