Home
Class 11
PHYSICS
Two needles are floating on the surface ...

Two needles are floating on the surface of water. A hot needle when touches wate `3r` surface between the needles then they move

A

closer

B

away

C

out of the liquid

D

into the liquid.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 1 (C.W)|54 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 2 (C.W)|40 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EXERCISE - III|30 Videos

  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

A needle or a pin floats on the surface of water because of

A solid needle placed horizontally on the surface of the water floats due to

The length of needle foating on the surface of water is 1.5 cm the force in addition to its weight required to lift the needle from water surface will be (surface tension of water =7.5N//cm )

A needle of length 5 cm is floating on the surface of water. Calculate the minimum force needed to lift the needle above the aurface of water. Surface tension of water is 0.073 N/m.

Assertion: A needle placed carefully on the surface of water may float. Reason: A needle placed carefully on the surface of water may float due to the surface tension as upward forces due to surface tension balances the weight of the needle.

A needle made up of iron floats on the water surface due to

Assertion : A thin staindess steel needle can by floating on a still water surface Reason : Any object floats when the bayancey force balace the weight of the object

A magnetic needle placed on a piece of cork is floating on the calm surface of a lake in the northern hemisphere. Would the magnetic needle alongwith the cork move towards north?

NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-C.U.Q
  1. A small steel ball of radius r is allowed to fall under gravity throug...

    Text Solution

    |

  2. A ball is dropped into coaltar. Its velocity time curve will be

    Text Solution

    |

  3. Two needles are floating on the surface of water. A hot needle when to...

    Text Solution

    |

  4. When there are no external forces, shape of the liquid is determined b...

    Text Solution

    |

  5. In a gravity free space, shape of a large drop of liquid is

    Text Solution

    |

  6. Statement I: Small liquid drops assume spherical shape. Statement II...

    Text Solution

    |

  7. A capillary tube, made of glass is dipped into mercury. Then

    Text Solution

    |

  8. The height upto which water will rise in a capillary tube will be:

    Text Solution

    |

  9. At critical temperature surface tension becomes

    Text Solution

    |

  10. The fundametal quantity which has the same power in the dimensional fo...

    Text Solution

    |

  11. Statement I: Droplets of liquid are usually more spherical in shape th...

    Text Solution

    |

  12. Mercury does not wet glass, wood or iron because

    Text Solution

    |

  13. The surface tension of a liquid at its boiling point is

    Text Solution

    |

  14. The addition of soap changes the surface tension of water to T(1) and ...

    Text Solution

    |

  15. Surface tension of water is T(1). When oil spreads on water surface te...

    Text Solution

    |

  16. Two pieces of glass plate one upon the other with a little water betwe...

    Text Solution

    |

  17. The quantity on which the rise of liquid in a capillary tube does not ...

    Text Solution

    |

  18. The end of a glass tube becomes round on heating due to

    Text Solution

    |

  19. The potential energy of molecule on the surface of a liquid as compare...

    Text Solution

    |

  20. A drop of water breaks into two droplets of equal size. In this proces...

    Text Solution

    |