Question

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

• A. 0.01
• B. 0.06
• C. 0.02
• D. 0.03

Answer 1

Answer: (D)

0.03

Answer 2

Volume of cube $V = L^{3}$ ∴ Percentage change in $V = 3$× (percentage change in L)= 3$(1\%) = 3\%$

$\therefore\Delta V = 3\%$ of V ⇒ Volumetric strain $= \frac{\Delta V}{V} = \frac{3}{100} = 0.03$