Question

Soap bubbles can be formed floating in air by blowing soap solution in air, with the help of a glass tube, but not water bubbles. It is because

• A. The excess pressure inside water bubble being more due to large surface tension
• B. The excess pressure inside water bubble being less due to large surface tension
• C. The excess pressure inside water bubble being more due to large viscosity
• D. The excess pressure inside water bubble being less due to less viscosity

Answer 1

The correct option is A The excess pressure inside water bubble being more due to large surface tension

The pressure difference between the inside and outside of a bubble depends upon the surface tension and the radius of the bubble and the excess pressure inside water bubble being more due to large surface tension.