Home
Class 11
PHYSICS
A water proofing agent chages the angle ...

A water proofing agent chages the angle of contact from

A

from obtuse to acute.

B

from acute to obtuse

C

from obtuse to` pi/2`.

D

from acute to `pi/ 2`.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    DISHA|Exercise PHYSICS|42 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    DISHA|Exercise PHYSICS|44 Videos

Similar Questions

Explore conceptually related problems

The water proofing agents:

A sheet can be made water proof by coating it with a substance that changes the angles of contact

Angle of contact depends on

With the increase in temperature the angle of contact glass and water

For impure water - glass surface , the angle of contact is

The parts of motor cars are polished by chromium because the angle of contact between water and chromium is

Calculate the ratio of surface tension of mercury and water if in a capillary tube, mercury is depressed by 3.45 cm and water rises by 9.8 cm in the same tube. The angle of contact for mercury is 140^@ and that for water is 0^@.

A glass plate is partly dipped vertically in the mercury and the angle of contact is measured. If the plate is inclined, then the angle of contact will

Define surface tension and angle of contact.

DISHA-MECHANICAL PROPERTIES OF FLUIDS-Physics
  1. When a large bubble rises from the bottom of a lake to the surface its...

    Text Solution

    |

  2. What is the velocity v of a metallic ball of radius r falling in a tan...

    Text Solution

    |

  3. Two pieces of metals are suspended from the arms of a balance and are ...

    Text Solution

    |

  4. A block of material of specific gravity 0.4 is held submerged at a dep...

    Text Solution

    |

  5. Figure shows a capillary tube C dipped in a liquid that wets it. The l...

    Text Solution

    |

  6. A small spherical ball falling through a viscous medium of negligible ...

    Text Solution

    |

  7. Two non-mixing liquids of densities rho and (n gt1) are put in a cont...

    Text Solution

    |

  8. A thin liquid film formed between a U-shaped wire and a light slider s...

    Text Solution

    |

  9. Two liquids of densities d(1) and d(2) are flowing in identical capill...

    Text Solution

    |

  10. Let T(1) be surface tension between solid and air, T(2) be the surface...

    Text Solution

    |

  11. A uniform rod of density rho is placed in a wide tank containing a liq...

    Text Solution

    |

  12. A spherical ball of iron of radius 2 mm is falling through a column of...

    Text Solution

    |

  13. A film of water is formed between two straight parallel wires each 10 ...

    Text Solution

    |

  14. A water proofing agent chages the angle of contact from

    Text Solution

    |

  15. A thin metal disc of radius r floats on water surface and bends the su...

    Text Solution

    |

  16. A jar filled with two non-mixing liquid 1 and 2 having densities rho(1...

    Text Solution

    |

  17. On heating water, bubbles being formed at the bottom of the vessel det...

    Text Solution

    |

  18. The lift of an air plane is based on

    Text Solution

    |

  19. The cylindrical tube of a spray pump has radius R, one end of which ha...

    Text Solution

    |

  20. A drop of liquid of density rho is floating half-immersed in a liquid ...

    Text Solution

    |