Home
Class 11
PHYSICS
If no external torque acts on a body, wi...

If no external torque acts on a body, will its angular velocity remain conserved ?

Text Solution

Verified by Experts

No `omega alpha I/I`.
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    CBSE COMPLEMENTARY MATERIAL|Exercise ROTATIONAL MOTION (2 MARK)|15 Videos
  • ROTATIONAL MOTION

    CBSE COMPLEMENTARY MATERIAL|Exercise ROTATIONAL MOTION (3 MARK)|10 Videos
  • PROPERTIES OF MATTER

    CBSE COMPLEMENTARY MATERIAL|Exercise MULTIPLE CHOICE QUESTIONS (MCQs)|20 Videos
  • THERMODYNAMICS

    CBSE COMPLEMENTARY MATERIAL|Exercise MULTIPLE CHOICE QUESTIONS (MCQs)|20 Videos

Similar Questions

Explore conceptually related problems

If no external force acts on a body, it will

Assertion : The speed of a whirl wind in a tornado is alarmigly high. Reason : If no external torque acts on a body, its angualr velocity remains constant.

When no external torque acts on a system, its angular momentum remains constant. Is the statement true ? Should kinetic energ of rotation of the system remain constant ? If yes, why , and if no, why not?

If a constant torque acts on a body, the body?

What is the torque acting on a body moving with constant angular velocity ?

If the resultant external torque acting on a body is zero, then angular momentum of the body

When there is no external torque acting on a body moving in an elliptical path, which of the following quantities remain constant ?

Assertion : If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant. Reason : The linear momentum of an isolated system remains constant.

Satement-1: if there is no external torque on a body about its centre of mass, then the velocity of the center of mass remains constant. Statement-2: The linear momentum of an isolated system remains constant.

On application of a constant torque, a wheel is turned from rest through an angle of 200 radius in 8 s . What is its angular acceleration ? If the same torque continues to act, what will be the angular velocity of the wheel 16 s from the start ?

CBSE COMPLEMENTARY MATERIAL-ROTATIONAL MOTION -MULTIPLE CHOICE QUESTIONS
  1. If no external torque acts on a body, will its angular velocity remain...

    Text Solution

    |

  2. For which of the following does the centre of mass lie outside the bod...

    Text Solution

    |

  3. When a disc rotates with uniform angular velocity, which of the follow...

    Text Solution

    |

  4. Two identical particles move towards each other with velocity 2v and v...

    Text Solution

    |

  5. A circular disc of radius R is removed from a bigger circular d...

    Text Solution

    |

  6. Distance of the centre of mass of a solid uniform cone from its vertex...

    Text Solution

    |

  7. Angular momentum of the particle rotating with a central force is con...

    Text Solution

    |

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

    Text Solution

    |

  9. A couple is acting on a two particle system. The resultant motion will...

    Text Solution

    |

  10. Dimensions of angular momentum are

    Text Solution

    |

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

    Text Solution

    |

  12. One circular ring and one circular disc, both are having the same mass...

    Text Solution

    |

  13. What is the ratio of the moments of inertia of two rings radii r and n...

    Text Solution

    |

  14. Two rings of radius R and nR made of same material have the ratio of m...

    Text Solution

    |

  15. The moment of inertia of a ring about one of its diameters is I.What w...

    Text Solution

    |

  16. If a person standing on a rotating disc stretches out his hands, the a...

    Text Solution

    |

  17. A solid sphere is rolling without slipping on a horizontal plane. The ...

    Text Solution

    |

  18. A solid sphere of radius 'r' is rolling with velocity V on a smooth pl...

    Text Solution

    |

  19. Two bodies have their moments of inertia I and 2 I respectively about ...

    Text Solution

    |

  20. An inclined plane makes an angle 30° with the horizontal. A solid sphe...

    Text Solution

    |

  21. The motion of planets in the solar system is an exmaple of the conserv...

    Text Solution

    |