MCQ
A soap bubble assumes a spherical surface. Which of the following statement is wrong
  • A
    The soap film consists of two surface layers of molecules back to back
  • B
    The bubble encloses air inside it
  • The pressure of air inside the bubble is less than the atmospheric pressure; that is why the atmospheric pressure has compressed it equally from all sides to give it a spherical shape
  • D
    Because of the elastic property of the film, it will tend to shrink to as small a surface area as possible for the volume it has enclosed

Answer

Correct option: C.
The pressure of air inside the bubble is less than the atmospheric pressure; that is why the atmospheric pressure has compressed it equally from all sides to give it a spherical shape
c
(c)

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