The amount of energy required to form a soap bubble of radius 2 cm from a soap solution is nearly: (surface…

The amount of energy required to form a soap bubble of radius 2 cm from a soap solution is nearly: (surface tension of soap solution = 0.03 N m-1)
  1. 50.1×10-4 J
  2. 30.16×10-4 J
  3. 5.06×10-4 J
  4. 3.01×10-4 J

Solution

Soap bubble has two free surface.

Therefore, amount of energy required =2S×A=20.03×4π2×10-22=3.01×10-4 J

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Asked in: NEET 2023 (All India)

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