EASY
11th Odisha Board
IMPORTANT
Earn 100

A soap bubble has radius 5 cm. If the soap solution has a surface tension 30×10-3 N/m, the gauge pressure within the bubble is  Pa.

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Important Questions on Surface Tension

EASY
11th Odisha Board
IMPORTANT
When a soap bubble is charged it contracts.
EASY
11th Odisha Board
IMPORTANT
If a drop of oil is placed on the surface of water, it will spread as a thin layer.
HARD
11th Odisha Board
IMPORTANT

A liquid does not wet the surface of a solid if the angle of contact is an obtuse one.

EASY
11th Odisha Board
IMPORTANT

Soap helps in cleaning the clothes because it reduces the surface tension of the solution.

EASY
11th Odisha Board
IMPORTANT
When a drop of water breaks into two droplets of equal size, there is loss in surface energy.