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  4. A uniform cube is subjected to volume compression. If each side is decreased by 1 %, , then bulk strain is

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Q. A uniform cube is subjected to volume compression. If each side is decreased by $1\%,$ , then bulk strain is

NTA AbhyasNTA Abhyas 2022

Solution:

$v=l^{3}$
$\frac{\Delta v}{v}=\frac{3 \Delta l}{l}=\frac{3}{100}\left(\frac{\Delta l}{l} \times 100\right)$
$=\frac{3}{100}\times 1=0.03$