Question

The surface area of a soap-bubble is $2.0\times {10}^{-3}m$ . How much work will be done in blowing the bubble to twice its surface area.?

• A. $3.2\times {10}^{-4}$.
  
• B. $1.2\times {10}^{-4}$.
  
• C. $2.2\times {10}^{-4}$.
  
• D. $12\times {10}^{-4}$.
  

Answer 1

The correct option is B $1.2\times {10}^{-4}$.