Mechanical Properties of Solids

Question: The work per unit volume to stretch the length by $1%$ of a wire with cross sectional area of $1\,m{{m}^{2}}$ will be. $[Y=9\times {{10}^{11}}\,N/{{m}^{2}}]$

1) $9\times {{10}^{11}}\,J$

2) $4.5\times {{10}^{7}}\,J$

3) $9\times {{10}^{7}}J$

4) $4.5\times {{10}^{11}}\,J$

Solution:

Explanation: No Explanation

Work Done in Stretching a Wire

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