Home
Class 12
PHYSICS
A disc of metal is melted and recast in ...

A disc of metal is melted and recast in the form of solid sphere. What will happen to the moment of inertia about a vertical axis passing through the centre ?

Text Solution

Verified by Experts

The moment of inertia will decrease/
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    MBD PUBLICATION|Exercise QUESTION BANK|193 Videos

  • MOVING CHARGES AND MAGNETISM

    MBD PUBLICATION|Exercise QUESTION BANK|148 Videos

Similar Questions

Explore conceptually related problems

The uniform wire of length I and mass m is bent in the form of circle , calculate moment of inertia of ring about an axis passing through its center and perpendicular to its length.

The radius of gyration of a body about an axis at a distance of 6 cm from its centre of mass is 10 cm . find its radius of gyration about an axis passing through its centre of mass

What is the order of the differential equation of all circles of radius r having centre on y-axis and passing through the origin ?

State and prove theorem of perpendicular axes and use it to obtain moment of inertia of a solid disc about one of it's diameter.

MBD PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-QUESTION BANK
  1. why there are two propellers in a helicopter ?

    Text Solution

    |

  2. There are two spheres of same mass and radius. One is solid and the ot...

    Text Solution

    |

  3. A disc of metal is melted and recast in the form of solid sphere. What...

    Text Solution

    |

  4. There are two spheres of same mass and radius. One is solid and the ot...

    Text Solution

    |

  5. You are given a cube, a ring, a cylinder and a sphere, all having equa...

    Text Solution

    |

  6. How can you distinguish between hard boiled egg and a raw egg by spinn...

    Text Solution

    |

  7. The cap of the pen can easily be opened with the help of two fingers t...

    Text Solution

    |

  8. Why the speed of whirlwind in a tornado is alarmingly high ?

    Text Solution

    |

  9. What is the centre of mass of a body ?

    Text Solution

    |

  10. Where the centre of mass of a rigid body lies ?

    Text Solution

    |

  11. The Sl unit of centre of mass is ?

    Text Solution

    |

  12. The concept of centre of mass is ?

    Text Solution

    |

  13. Moment of inertia is a vector or scalar quantity ?

    Text Solution

    |

  14. Where law of conservation of angular momentum is valid ?

    Text Solution

    |

  15. What is basic cause of rotational motion ?

    Text Solution

    |

  16. If axis of rotation not given, does moment of inertia bear a meaning ?

    Text Solution

    |

  17. Angular momentum is directed according to which rule ?

    Text Solution

    |

  18. What is net force on a body under the action of a couple ?

    Text Solution

    |

  19. Name the unit of radius of gyration in M.K.S. system ?

    Text Solution

    |

  20. The Ml of a solid sphere is ?

    Text Solution

    |