Mechanical Properties of Solids

Related Questions

• A weight of $200 kg$ is suspended by vertical wire of length $600.5 cm$. The area of cross-section of wire is $1\,m{{m}^{2}}$. When the load is removed, the wire contracts by $0.5 cm$. The Young's modulus of the material of wire will be

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• The length of a rod is $20 cm$ and area of cross-section $2\,c{{m}^{2}}$. The Young's modulus of the material of wire is $1.4\times {{10}^{11}}\,N/{{m}^{2}}$. If the rod is compressed by 5 kg-wt along its length, then increase in the energy of the rod in joules will be

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• Which is correct relation

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• Two wires A and B of same length and of the same material have the respective radii ${{r}_{1}}$ and ${{r}_{2}}$. Their one end is fixed with a rigid support, and at the other end equal twisting couple is applied. Then the ratio of the angle of twist at the end of A and the angle of twist at the end of B will be

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• A brass rod of cross-sectional area $1\,c{{m}^{2}}$ and length $0.2 m$ is compressed lengthwise by a weight of 5 kg. If Young's modulus of elasticity of brass is $1\times {{10}^{11}}\,N/{{m}^{2}}$ and $g=10\,m/{{\sec }^{2}}$, then increase in the energy of the rod will be

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