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

Options

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

Answer

D

Explanation

If side of the cube is L then,
`V=L^(3)`
`rArr" "(dV)/(V)=3(dL)/(L)`
`therefore%"change in volume"=3xx(%"change in length")`
`=3xx1%=3%`
`therefore"Bulk strain"(DeltaV)/(V)=0.03`