Multiple choice

A copper solid cube of $60\ mm.$ side is subjected to a pressure of $2.5 \times 10 ^ { 7 }\ \mathrm { N } / \mathrm { m } ^ { 2 }$. If the bulk modulus of copper is $1.25 \times 10 ^ { 11 }\ \mathrm { N } / \mathrm { m } ^ { 2 }$ then the change in the volume of the cube will be :

  1. $43.2\ \mathrm { mm } ^ { 3 }$
  2. $33.2\ \mathrm { mm } ^ { 3 }$
  3. $23.2\ \mathrm { mm } ^ { 3 }$
  4. $432\ \mathrm { mm } ^ { 3 }$
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C Correct answer

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