If a brass sphere of radius 36 cm is submerged in a lake at a depth where the pressure is $10^7 \mathrm{~Pa}$, then the change in the radius of the sphere is $($ Bulk modulus of brass $=60 \mathrm{GPa})$

• A

  $4 \times 10^{-2} \mathrm{~cm}$
• Correct answer
  B

  $2 \times 10^{-3} \mathrm{~cm}$
• C

  $4 \times 10^{-3} \mathrm{~cm}$
• D

  $2 \times 10^{-2} \mathrm{~cm}$

Hence, the correct answer is option: 'B'.