Home
Class 12
PHYSICS
Every liquid surface tends to contract t...

Every liquid surface tends to contract to a minimum surface area. This tendency is exhibited as -

A

Surface tension

B

Viscosity

C

Gravitation

D

pressure of liquid

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    MBD PUBLICATION|Exercise QUESTION BANK|191 Videos

  • MECHANICAL PROPERTIES OF FLUID(FLUID IN MOTION)

    MBD PUBLICATION|Exercise QUESTION BANK|164 Videos

Similar Questions

Explore conceptually related problems

How liquid surface behaves?

Show that a cylinder of a given volume, which is open at the top has minimum total surface area, when its height is equal to the radius of its base.

Predict and explain Gaussian surface A has twice the area of Gaussian surface B. Both surfaces enclose the same charge Q. Choose the best explanation from the following. (a) Gaussian surface B is closer to the charge, since it has the smaller area. It follows that it has the greater electric flux. (b) The two surfaces enclose the same charge and hence they have the same electric flux. (c ) Electric flux is proportional to the area Therefore , Gaussian surface A has the greater electric flux.

Predict and explain Gaussian surface A has twice the area of Gaussian surface B. Both surfaces enclose the same charge Q. Is the electric flux through surface A greater than, less than or the same as the electric flux through surface B ?

At boiling point the surface tension of a liquid is ____.

Why surface tension of a liquid decreases with increase of temperature ?

Define surface tension. Give examples how liquid surface behaves as a stretched membrane. State the units and dimensions of surface tension.

MBD PUBLICATION-MECHANICAL PROPERTIES OF FLUID (LIQUID AT REST)-QUESTION BANK
  1. Sixty four identical drops of mercury comes together to form a single ...

    Text Solution

    |

  2. Surface tension of the liquid is the property by virtue of which the f...

    Text Solution

    |

  3. Every liquid surface tends to contract to a minimum surface area. This...

    Text Solution

    |

  4. Spiders and small insects move easily on the surface of water without ...

    Text Solution

    |

  5. A needle floating on the surface of water moves away on adding a drop ...

    Text Solution

    |

  6. A liquid drop always tends to have spherical shape because -

    Text Solution

    |

  7. If an oil drop is poured on water, then it will

    Text Solution

    |

  8. Surface tension in a liquid is due to

    Text Solution

    |

  9. The force of attraction between two molecules of the same substance is...

    Text Solution

    |

  10. Mercury does not wet wood, glass or iron. It indicates that its cohesi...

    Text Solution

    |

  11. The radius of sphere of influence is

    Text Solution

    |

  12. When a liquid drop is placed on a glass plate, the liquid-solid force ...

    Text Solution

    |

  13. If the cohesive force is less than the adhesive force, then the liquid...

    Text Solution

    |

  14. When the adhesive force between a liquid and glass is greater than the...

    Text Solution

    |

  15. The potential energy per unit area of the liquid surface, is called

    Text Solution

    |

  16. If the surface tension of a rectangular film of soap solution is T and...

    Text Solution

    |

  17. The relation between surface tension and surface energy

    Text Solution

    |

  18. Soap helps in cleaning clothes because

    Text Solution

    |

  19. A wire ring is radius is r and a liquid film is formed across it. F is...

    Text Solution

    |

  20. Platinum wire rings of radius 2.5 cm floats horizontally on the surfac...

    Text Solution

    |