Home
Class 12
PHYSICS
Why a needle may float on clear water bu...

Why a needle may float on clear water but sink when some detergent is added to water?

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

Why a needle floats on the surface of a liquid?

What happens when FeCl_3 is added to hot water?

In the fertilizers are added to water :

Why do soaps not work in hard water?

Why alum is used for clearing muddy water.

Which is not present in clear hard water ?

Why does sea water boil at higher temperature than normal water?

Why lower acids are soluble in water ?

MBD PUBLICATION-MECHANICAL PROPERTIES OF FLUID (LIQUID AT REST)-QUESTION BANK
  1. Deduce an expression for excess of pressure. Differentiate it in case ...

    Text Solution

    |

  2. What is capillarity? Explain the phenomenon of concave and convex meni...

    Text Solution

    |

  3. Why a needle may float on clear water but sink when some detergent is ...

    Text Solution

    |

  4. Explains why particles of camphor exhibit vigorous movement on the sur...

    Text Solution

    |

  5. Explain how glue works?

    Text Solution

    |

  6. In terms of molecular forces what difference do you find between solde...

    Text Solution

    |

  7. From where the energy come when liquid rises against gravity in a capi...

    Text Solution

    |

  8. What are the factors affecting surface tension?

    Text Solution

    |

  9. Why is it not wise to the touch the inner surface of an umbrella while...

    Text Solution

    |

  10. Explain how a pond skater can walk on water but but a person cannot.

    Text Solution

    |

  11. Distinguish between cohesion and adhesion.

    Text Solution

    |

  12. Distinguish between surface tension and surface energy.

    Text Solution

    |

  13. Explain why a small piece of soap fixed to the back of a card board th...

    Text Solution

    |

  14. A water drop has a diameter of 2 xx 10^-5m. Calculate the excess press...

    Text Solution

    |

  15. What is the nature of inter-molecular forces at short distance and at ...

    Text Solution

    |

  16. Explain why water spreads but not the mercury on clean glass plate.

    Text Solution

    |

  17. explain what is meant by surface energy of a liquid. Show that surface...

    Text Solution

    |

  18. What will be the rise of water when a capillary tube of radius 0.5mm i...

    Text Solution

    |

  19. Distinguish between cohesion and adhesive forces.

    Text Solution

    |

  20. Why does water spread over and wet a glass ?

    Text Solution

    |