Categories > Mechanical Properties of Solids > Work Done in Stretching a Wire > 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

Mechanical Properties of Solids

Question: 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


1) ${{10}^{-5}}$J
2) $2.5\times {{10}^{-5}}$J
3) $5\times {{10}^{-5}}$J
4) $2.5\times {{10}^{-4}}$J
Solution: Explanation: No Explanation
Work Done in Stretching a Wire

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