Question:

The work done in blowing a soap bubble of radius R is Wat room temperature. Now the soap solution is heated. From the heated solution another soap bubble of radius 2R is blown and the work done is ‘W2’ Then:

Options :

  • (a) W2 = W1
  • (b) W2 = 4W1
  • (c) W2 < 4W1
  • (d) W2= 0

Answer :

(c) W2 < 4W1

Answer Steps :

Step 1:

Step 2:

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