Home
Class 12
PHYSICS
If the moment of inertia of a rigid body...

If the moment of inertia of a rigid body is numerically equal to its mass, radius of gyration is

A

equal to its radius

B

equal to diameter

C

equal to one unit

D

infinite

Text Solution

Verified by Experts

The correct Answer is:
C
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

Moment Of Inertia Of Rigid Body

Assertion : The moment of inertia of a rigid body reduces to its minimum value, when the axis of rotation passes through its centre of gravity. Reason : The weight of a rigid body always acts through its centre of gravity.

Does the moment of inertia of a rigid body change with the axis of rotation?

A wheel of mass 10 kg has a moment of inertia of 160 kg-m^(2) about its own axis, the radius of gyration will be

Then moment of inertia of a rigid body depends on (A) mass of body (B) position of axis of rotation (C) time period of its rotation (D) angular velocity of the body

The moment of inertia of a rigid body is not unique , about a given axis. The moment of inertia of a rigid depends on axis about which it has to be calculated.

The moment of inertia of a rigid body in terms of its angular momentum L and kinetic energy K is

The moment of inertia of rigid body depends only on the mass of the body, its shape and size. Moment of inertia I = MR^2 where M is the mass of the body and R is the radius vector.

The rotational kinetic energy of a body is E. In the absence of external torque, the mass of the body is halved and its radius of gyration is doubled. Its rotational kinetic energy is

NIKITA PUBLICATION-ROTATIONAL MOTION -MULTIPLE CHOICE QUESTIONS
  1. Four identical bodies each of mass 1 kg are placed touching to each ot...

    Text Solution

    |

  2. Dimensions of moment of inertia are

    Text Solution

    |

  3. If the moment of inertia of a rigid body is numerically equal to its m...

    Text Solution

    |

  4. Moment of inertia in rotatory motion is comparable to the quantity in ...

    Text Solution

    |

  5. A ring and a disc have same mass and same radius. Then ratio of moment...

    Text Solution

    |

  6. Moment of inertia comes into play

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. A cycle wheel is fitted with spokes because

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. Moment of inertia of body depends upon

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |