Home
Class 11
PHYSICS
A particle performing uniform circular m...

A particle performing uniform circular motion gas angular momentum `L`. If its angular frequency is double and its kinetic energy halved, then the new angular momentum is :

A

4L

B

2L

C

L/2

D

L/4

Text Solution

Verified by Experts

The correct Answer is:
D
` K.E = 1/2 xx L xx omega `
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    NARAYNA|Exercise EXERCISE - I(H.W)|63 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    NARAYNA|Exercise EXERCISE - II (C.W)|60 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    NARAYNA|Exercise C.U.Q|71 Videos

  • SYSTEM OF PARTICLES

    NARAYNA|Exercise Level-VI|78 Videos

  • THERMAL PROPERTIES OF MATTER

    NARAYNA|Exercise LEVEL - II (H.W.)|19 Videos

Similar Questions

Explore conceptually related problems

A particle performs a uniform circular motion with angular momentum L. If its angular frequency is halved and the rotational kinetic energy is doubled, then the new angular momentum will be

A particle performs uniform circular motion with an angular momentum L.If the frequency of particle's motion is doubled and its kinetic energy halved,the angular momentum becomes

A particle performs uniform circular motion with an angular momentum L. If the frequency of particles motion is doubled and its kinetic energy is halved, the angular momentum becomes :

A particle performing uniform circular motion has angular frequency is doubled & its kinetic energy halved, then the new angular momentum is

A particle performing uniform circular motion has angular momentum L . When its angular velocity is doubled and K.E is also doubled, the new angualr momentum becomes x times. What is x ?

A disc rotates with angular velocity omega and kinetic energy E . Then its angular momentum

NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I (C.W)
  1. A particle of mass m is moving along a circle of radius r with a time ...

    Text Solution

    |

  2. A mass is whirled in a circular path with an angular momentum L. If th...

    Text Solution

    |

  3. The diameter of a disc is 1m. It has a mass of 20kg. It is rotating ab...

    Text Solution

    |

  4. A particle performing uniform circular motion gas angular momentum L. ...

    Text Solution

    |

  5. A constant torque acting on a uniform circular wheel changes its angul...

    Text Solution

    |

  6. If the earth were to suddenly contract to 1//n^(th) of its present rad...

    Text Solution

    |

  7. A thin circular ring of mass M and radius r is rotating about its axis...

    Text Solution

    |

  8. If the radius of earth shrinks by 0.2% without change in its mass, the...

    Text Solution

    |

  9. A metallic circular plate is rotating about its axis without friction....

    Text Solution

    |

  10. An automobile engine develops 100H.P. when rotating at a speed of 1800...

    Text Solution

    |

  11. An electric motor exerts a constant torque 5Nm on a fly wheel by which...

    Text Solution

    |

  12. A circular disc of mass 0.41 kg and radius 10 m rolls without slipping...

    Text Solution

    |

  13. A metre stick is held vertically with one end on the floor and is then...

    Text Solution

    |

  14. The rotational kinetic energy of two bodies of moment of inertia 9 kg ...

    Text Solution

    |

  15. A hollow sphere rolls down a 30^@ incline of length 6m without slippin...

    Text Solution

    |

  16. A hollow sphere rolls down a 30^@ incline of length 6m without slippin...

    Text Solution

    |

  17. A ring and a disc of same mass roll without slipping along a horizonta...

    Text Solution

    |

  18. A solid cylinder of mass M and radius R rolls down an inclined plane o...

    Text Solution

    |

  19. A thin uniform circular ring is rolling down an inclined plane of incl...

    Text Solution

    |

  20. A thin circular ring first slips down a smooth incline then rolls down...

    Text Solution

    |