Home
Class 9
PHYSICS
Give reasons for the following :A sharp ...

Give reasons for the following :A sharp blade is more effective in cutting an object than a blunt blade.

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Give reason for the following Chlamydomonas is motile.

Give reasons for the following : PbCl_4 is more covalent than PbCl_2 .

Give reasons for the following: Sulphur vapour is paramagnetic.

Give reasons for the following: Square is also a parallelogram.

Give reasons fer the following : o-nitrophenol is more acidic than o-methoxyphenol.

Give reasons for the following statements: Grain is a fruit not seed.

Give reason fo the following statement- Shaving blades are made of an alloy.

Give reasons for the following: Chlorine has higher electron gain enthalpy than fluorine.

Give reasons for the following : Sodium and pottasium are stored in kerosene.

MBD-GRAVITATION-Example
  1. Give reason when Big buildings and dams have wide foundations for safe...

    Text Solution

    |

  2. A steel needle sinks in water but a steel ship floats. Explain how ?

    Text Solution

    |

  3. Give reasons for the following :A sharp blade is more effective in cut...

    Text Solution

    |

  4. Give reasons for the following :A cork piece floats but an iron piece ...

    Text Solution

    |

  5. Explain the following : Swimmers are provided with an inflated rubber ...

    Text Solution

    |

  6. Explain the following : It is easier of swim in sea water than in rive...

    Text Solution

    |

  7. Why is the pressure on ground more when a man is walking than when he ...

    Text Solution

    |

  8. Why a bucket of water is lighter when in water than when it is taken o...

    Text Solution

    |

  9. If a fresh egg is put into a beaker filled with water, it sinks. On di...

    Text Solution

    |

  10. Two spheres of 1kg mass each are separated by 3 m. Calculate the gravi...

    Text Solution

    |

  11. The radius of moon is 1.7 xx10^6m and its mass is 7.35xx 10^22 kg. Wha...

    Text Solution

    |

  12. Find the change in weight percentage of a body when it is taken from e...

    Text Solution

    |

  13. At what height above the earth surface, the acceleration due to gravit...

    Text Solution

    |

  14. A ball is dropped from top of 40m high tower. What will be its velocit...

    Text Solution

    |

  15. If weight of an object is 49 N then what will be its mass ?

    Text Solution

    |

  16. A block of wood is kept on the table top. The mass of wooden block is ...

    Text Solution

    |

  17. A block of wood is kept on the table top. The mass of wooden block is ...

    Text Solution

    |

  18. What is g on the moon as compared to that on earth?

    Text Solution

    |

  19. What is unit of G?

    Text Solution

    |

  20. What is the mass of the earth?

    Text Solution

    |