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KCET2020PhysicsMechanical Properties of Fluids

When a soap bubble is charged?

Options

  1. AIts radius increases
  2. BIts radius decreases
  3. CThe radius remains the same
  4. DIts radius may increase or decrease

Correct answer

A. Its radius increases

Step-by-step solution

When a soap bubble is charged, then the bubble expands because the charged particles uniformly distributed on it causes them to repel each other due to the electrostatic force. Hence, radius of soap bubble increases.

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