Home
Class 11
PHYSICS
A particle is confined to rotate in a ci...

A particle is confined to rotate in a circular path decreasing linear speed, then which of the following is correct?

A

`vecL` (angular momentum) is conserved about the centre

B

only direction of angular momentum `vecL` is conserved

C

it spirals towards the centre

D

its acceleration is towards the centre

Text Solution

Verified by Experts

The correct Answer is:
B
Since a particle rotates in circular path, it spirals towards the centre.
Promotional Banner

Topper's Solved these Questions

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (VERY SHORT ANSWER QUESTIONS)|24 Videos

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (SHORT ANSWER QUESTIONS)|38 Videos

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise TEXTBOOK QUESTIONS & ANSWERS (NUMERICAL PROBLEMS)|12 Videos

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (VI Numerical Problems)|62 Videos

  • NATURE OF PHYSICAL WORLD AND MEASUREMENT

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (III. Short Answer Questions.)|24 Videos
PREMIERS PUBLISHERS-MOTION OF SYSTEM OF PARTICLES AND BODIES-OTHER IMPORTANT QUESTIONS & ANSWER (MULTIPLE CHOICE QUESTIONS)
  1. A particle is moving with a contant velocity along a line parallel to ...

    Text Solution

    |

  2. A particle undergoes uniform circular motion. The angular momentum of ...

    Text Solution

    |

  3. A particle is confined to rotate in a circular path decreasing linear ...

    Text Solution

    |

  4. A solid sphere is rotationg in free space. If the radius of the sphere...

    Text Solution

    |

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

    Text Solution

    |

  6. Different types of equilibrium are given in column I. Match the types ...

    Text Solution

    |

  7. Angular momentum is ………………….. Vector.

    Text Solution

    |

  8. Which of the following is a vector quantity?

    Text Solution

    |

  9. The dimensions of angular momentum are:

    Text Solution

    |

  10. Analogue of mass in rotational motion is

    Text Solution

    |

  11. Identify the incorrect odd man out from the following expressions for ...

    Text Solution

    |

  12. The angular momentum of a system of particles is conserved:

    Text Solution

    |

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

    Text Solution

    |

  14. What quantities are conserved in this collision?

    Text Solution

    |

  15. A uniform circular disc of radius 50 cm at is free to turn about an ax...

    Text Solution

    |

  16. In an orbital motion, the angular momentum vector is

    Text Solution

    |

  17. The angular momentum of a moving body remains constant if

    Text Solution

    |

  18. The direction of angular velocity vector is along:

    Text Solution

    |

  19. The angular momentum of a moving body remains constant if

    Text Solution

    |

  20. Assertion: Friction is necessary for abody to roll on a surface. Rea...

    Text Solution

    |