Question:

3.Work done in increasing the size of a soap bubble from a radius of 3 cm to 5 cm is nearly. (Surface tension of soap solution = 0.03 Nm³¹)

Options :

  • a) 4πmJ
  • b) 0.2πmJ
  • c) 2πmJ
  • d) 0.4πmJ

Answer :

d) 0.4πmJ

Answer Steps :

Solution :-

Step1 :-

Step2 :-

 

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