Home
Class 12
PHYSICS
A circular disc of radius R and thicknes...

A circular disc of radius `R` and thickness `R//6` has moment of inertia `I` about an axis passing through its centre and perpendicular to its plane. It is melted and recast into a solid sphere. The `M.I` of the sphere about its diameter as axis of rotation is

A

`1/5`

B

`1/6`

C

`1/(32)`

D

`(1)/(64)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2019

    TARGET PUBLICATION|Exercise MCQ|45 Videos

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise Evaluation Test|17 Videos

Similar Questions

Explore conceptually related problems

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

The moment of inertia of a copper disc, rotating about an axis passing through its centre and perpendicular to its plane

A solid cylinder has mass M radius R and length / its moment of inertia about an axis passing through its centre and perpendicular to its own axis is

Radius of gyration of a uniform circular disc about an axis passing through its centre of gravity and perpendicular to its plane is

A disc of mass m and radius R has a concentric hole of radius r . Its moment of inertia about an axis through its center and perpendicular to its plane is

A disc of radius R has a concentric hole of radius R /2 and its mass is M. Its moment of inertia about an axis through its centre and perpendicular to its plane, is

Calculate the moment of inertia of a disc of radius R and mass M, about an axis passing through its centre and perpendicular to the plane.

TARGET PUBLICATION-ROTATIONAL MOTION -MCQ
  1. The moment of inertia of a uniform semicircular disc of mass M and rad...

    Text Solution

    |

  2. The moment of inertia of a straight thin rod of mass M and length l ab...

    Text Solution

    |

  3. A circular disc of radius R and thickness R//6 has moment of inertia I...

    Text Solution

    |

  4. Eight identical small solid spheres, each of moment of inertia I' are ...

    Text Solution

    |

  5. The moment of inertia of a thin circular disc of mass M and radius R a...

    Text Solution

    |

  6. A solid sphere of mass M and radius R having tmoment of inertia I abou...

    Text Solution

    |

  7. Consider a thin uniform rod having length 'L' and mass 'M'. Its moment...

    Text Solution

    |

  8. The M.I of a disc about an axis perpendicular to its plane and passing...

    Text Solution

    |

  9. Calculate the M.I. of a thin uniform ring about an axis tangent to the...

    Text Solution

    |

  10. Consider a uniform square plate of side 'a' and mass 'm'. The moment o...

    Text Solution

    |

  11. The moment of inertia of a uniform circular disc of radius R and mass ...

    Text Solution

    |

  12. The moment of inertia of a solid cylinder of mass M, length 2 R and ra...

    Text Solution

    |

  13. The moment of inertia of a uniform thin rod of length L and mass M abo...

    Text Solution

    |

  14. A light rod of length l has two masses m1 and m2 attached to its two e...

    Text Solution

    |

  15. From a disc of radius R and mass m, a circular hole of diamter R, whos...

    Text Solution

    |

  16. A square frame ABCD is formed by four identical rods cach of mass 'm' ...

    Text Solution

    |

  17. Four point masses, each of value m, are placed at the corners of a squ...

    Text Solution

    |

  18. Three identical uniform thin metal rods form the three sides of an equ...

    Text Solution

    |

  19. The moment of inertia of a uniform cylinder of length l and radius R a...

    Text Solution

    |

  20. (L^(2))/(2I) represents

    Text Solution

    |