Home
Class 11
PHYSICS
A mass is whirled in a circular path wit...

A mass is whirled in a circular path with a constant angular velocity and its angular momentum is L. If the length of string is now halved keeping the angular velocity same, the new angular momentum is

A

`L//4`

B

`L//2`

C

`L`

D

`2L`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise Exercise-II|109 Videos

  • SURFACE TENSION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS )|8 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Integer/Subjective Type Questions|2 Videos

Similar Questions

Explore conceptually related problems

A mass is whirled in a circular path with an angular momentum L. If the length of string and angular velocity, both are doubled, the new angular momentum is

If A is the areal velocity of a planet of mass M, its angular momentum is

A body is moving at a distance parallel to X-axis with a constant velocity. Its angular momentum about the origin

Dimensional formula of angular momentum is

AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-PRACTICE EXERCISE
  1. If earth shrinks to 1//64 of its volume with mass remaining same durat...

    Text Solution

    |

  2. Two wheels of M.I. 3kgm^(2) and 5kgm^(2) are rotating at a rate of 600...

    Text Solution

    |

  3. A mass is whirled in a circular path with a constant angular velocity ...

    Text Solution

    |

  4. A square plate of moment of inertia 'I' is pivoted at its centre. It h...

    Text Solution

    |

  5. A flywheel of M.I. 6xx10^(-2)kgm^(2) is rotating with an angular veloc...

    Text Solution

    |

  6. When 200J of work is done on a fly wheel its frequency of rotation inc...

    Text Solution

    |

  7. The shaft of a motar is making 1260 RPM. The torque supplied by the mo...

    Text Solution

    |

  8. A solid sphere is rotating with an angular velocity omega. It is of mo...

    Text Solution

    |

  9. The moment of inertia of a wheel of radius 20cm is 40kgm^(2). If a tan...

    Text Solution

    |

  10. A thin rod of mass 'm' and length 2L is made to rotate about a normal ...

    Text Solution

    |

  11. The M.I. of a body is 1.2kgm^(2). Initially the body is at rest. In or...

    Text Solution

    |

  12. A uniform solid sphere of diameter 0.2m and mass 10kg is rotated about...

    Text Solution

    |

  13. If the K.E. of a rotating body about an axis is decreased by 36%, its ...

    Text Solution

    |

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

    Text Solution

    |

  15. A solid sphere and a hallow sphere of same mass and radius rotate abou...

    Text Solution

    |

  16. For the arrangement shown in the figure, tension in the string is

    Text Solution

    |

  17. A ring is allowed to roll down on an incline of 1 in 10 without slippi...

    Text Solution

    |

  18. A cylinder is released from rest from the top of an incline of inclina...

    Text Solution

    |

  19. For a body rolling along a level surface, without slipping the transla...

    Text Solution

    |

  20. A solid sphere and a spherical shell roll down an incline from rest fr...

    Text Solution

    |