Explanation
Isothermal bulk modulus = Pressure of gas
There will be both shear stress and normal stress.
In the region OA, stress ∝ strain i.e., Hooke's law hold good.
At point b, yielding of material starts.
In ductile materials, yield point exist while in Brittle material, failure would occur without yielding.
Young’s modulus of wire does not vary with dimension of wire. It is the property of given material.
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