What happens when some charge is placed on a soap bubble ?

The correct answer is its radius increases.

• What happens when some charge is placed on a soap bubble its radius increases.

Key Points

• The radius of the bubble will expand because the charged particles uniformly distributed on it causes them to repel each other due to the electrostatic force.
• The phenomenon takes place in both positive and negatively charged bubbles because of the charge on it. 

Additional Information

• Soap bubble exhibits the phenomenon of interference.
• When two light waves from different coherent sources meet together, then the distribution of energy due to one wave is disturbed by the other.
• The modification in the distribution of light energy due to the superposition of two light waves is called "Interference of light".
• The interference principle for light waves was promoted by T. Young.
• Optical interference shows the wave nature of light.