Correct Answer - Option 4 : All of the above
The correct answer is option 4) i.e. All of the above.
CONCEPT:
- Types of Modulus of elasticity:
Young's Modulus (Y)
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Bulk modulus (B)
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Shear Modulus (G)
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Young's modulus a modulus of elasticity, applicable to the stretching of wire, etc., equal to the ratio of the applied load per unit area of the cross-section to the increase in length per unit length.
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The ratio of hydrostatic stress to the volumetric strain within the elastic range is called the bulk modulus.
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The ratio of shear stress and shear strain is called shear modulus. It is also called the Modulus of rigidity.
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\(Y = \frac{Fl}{A\Delta l }\)
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\(B =\frac{PV}{\Delta V}\)
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\(G = \frac{{shear \, stress}}{{shear\;strain}} = \frac{{\frac{F}{A}}}{\theta }\)
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EXPLANATION:
- The isotropic, homogeneous and elastic material obeying Hooke's law has 3 constants Young's modulus, shear modulus and bulk modulus.