Home
Class 12
PHYSICS
A ring of mass m and radius r is melted ...

A ring of mass `m` and radius `r` is melted and then moulded into a sphere. The moment of inertia of the sphere will be

A

more than that of the ring

B

less than that of the ring

C

equal to that of the ring

D

the information given is incomplete

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER - MH-CET 2018

    NIKITA PUBLICATION|Exercise MCQ|50 Videos

  • SEMICONDUCTORS

    NIKITA PUBLICATION|Exercise MCQS|350 Videos

Similar Questions

Explore conceptually related problems

Three spheres, each mass M and radius R, are arranged as shown in the figure . The moment of inertia of the system will be

A metallic cone having base radius 2.1 cm and height 8.4 cm is melted and moulded into a sphere. The radius of the sphere is

Four rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY' will be

Three rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY¢ will be

A disc of radius R and thickness has moment of inertia / about an axis passing through its centre and perpendicular to its plane. Disc is melted and recast into a solid sphere. The moment of inertia of a sphere about its diameter is

A sphere of mass 10 kg and radius 0.5 m rotates about a tangent. The moment of inertia of the solid sphere about tangent is

NIKITA PUBLICATION-ROTATIONAL MOTION -MULTIPLE CHOICE QUESTIONS
  1. Moment of inertia comes into play

    Text Solution

    |

  2. If the angular velocity of a rotating rigid body is increased then its...

    Text Solution

    |

  3. A ring of mass m and radius r is melted and then moulded into a sphere...

    Text Solution

    |

  4. A cycle wheel is fitted with spokes because

    Text Solution

    |

  5. A steel sphere and a wooden sphere have the same mass. Then which will...

    Text Solution

    |

  6. An iron ball and a wooden ball have the same radius. Then which will h...

    Text Solution

    |

  7. Moment of inertia of body depends upon

    Text Solution

    |

  8. Which of the following has the smallest moment of inertia about the ce...

    Text Solution

    |

  9. The moment of inertia is the property of a rotating rigid body possess...

    Text Solution

    |

  10. The following bodies have same mass which of them have largest M.I. ?

    Text Solution

    |

  11. Moment of inertia of a body does not depend on

    Text Solution

    |

  12. If the position of axis of rotation of a body is changed, then a physi...

    Text Solution

    |

  13. Thye angular momentum and the moment of inertia are respectively

    Text Solution

    |

  14. The mass of a flywheel is concentrated at its rim

    Text Solution

    |

  15. A circular disc is to be made by using iron and aluminium, so that it ...

    Text Solution

    |

  16. About which of the following axis, the moment of inertia of a thin cir...

    Text Solution

    |

  17. The angular displacement of a flywheel varies with time as theta = at ...

    Text Solution

    |

  18. A ody is in pure rotation. The linear speed v of a particle, the dista...

    Text Solution

    |

  19. Moment of inertia of a rigid body about an axis passing through its ce...

    Text Solution

    |

  20. In rotatory motion, moment of inertia

    Text Solution

    |