Elastic Moduli

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Elastic Moduli: Overview

This topic contains concepts like Modulus of Elasticity, Young's Modulus of Elasticity, Units and Dimensions of Young's Modulus of Elasticity and Significance of Young's Modulus.

Important Questions on Elastic Moduli

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Given, Y=2×1011 N/m2ρ=104 kg/m3. Find out the elongation in the rod? 

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A copper and a steel wire of same diameter are connected end to end. A deforming force F is applied to this composite wire which causes a total elongation of 1 cm. The two wires will have:

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The dimensional formula for young's modulus is

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Why is Young's modulus important?

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Lateral strain produced in a wire depends on:

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Lateral strain is produced in a wire lying on a table, when a force is applied on its one end, perpendicular to its area of cross-section.

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Which one of the following is true about Bulk Modulus of elasticity?
 

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What is bulk modulus and its unit?

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 The SI units of bulk modulus of elasticity will be Pascal (Pa) or Newton per square metre (N/m^2).

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Young's modulus of a material  has the same unit as

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The dimensional formula of Young's modulus is MxL-1T-2. The value of x is _____.

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The Bulk modulus K of a material having young's modulus E =200 GPa  and modulus of rigidity G=80 GPa.

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What would be the value of Bulk modulus for a material which has young's modulus 1.2×105 N mm-2 and modulus of rigidity  4.8×104 N mm-2 ?  ( in 104 N mm-2)

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The bulk modulus for an incompressible liquid is _____.

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The bulk modulus for an incompressible liquid is infinite.

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The ratio of shearing stress to the corresponding shearing strain is called the modulus of _____.

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The dimensional formula of modulus of rigidity is ML-1T-2.

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State the units and dimensions of modulus of rigidity. 

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The dimensional formula of modulus of rigidity is

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What is the dimensional formula for the Poisson's ratio?