Home
Class 12
PHYSICS
A ring of mass m and radius R is being r...

A ring of mass `m` and radius `R` is being rotated about its axis with constant angular velocity `omega` in the gravity free space. Find tension in the ring.

A

zero

B

`(1)/(2)momega^(2)r^(2)`

C

`momega^(2)r^(2)`

D

`mromega^(2)`

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT IN CONDUCTORS

    D MUKHERJEE|Exercise All Questions|79 Videos

Similar Questions

Explore conceptually related problems

A ring of mass m and radius R is being rotated about its axis with angular velocity omega . If a increases then tension in ring

A thin circular ring of mass M and radius R is rotating about its axis with constant angular velocity omega . The objects each of mass m are attached gently to the ring. The wheel now rotates with an angular velocity.

A thin circular ring of mass m and radius R is rotating about its axis with a constant angular velocity omega . Two objects each of mass M are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with an angular velocity omega' =

A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity omega , Two objects, each of mass m, are attached gently to the opposite ends of a diameter of the ring. The wheel now rotates with an angular velocity omega=

A ring of mass m and radius R is given a charge q. It is then rotated about its axis with angular velocity omega .Find (i)Current produced due to motion of ring

A ring of mass m and radius R is given a charge q. It is then rotated about its axis with angular velocity omega .Find (ii) Magnetic field produced at the centre of ring.

A thin circular ring of mass M and radius R is rotating about its axis with a constant angular velocity omega. Four objects each of mass m, are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be

D MUKHERJEE-CIRCULAR,ROTATIONAL & SIMPLE HARMONIC MOTION-All Questions
  1. A uniform rod of mass m and length l rotates in a horizontal plane wit...

    Text Solution

    |

  2. A tube of length L is filled completely with an incomeressible liquid ...

    Text Solution

    |

  3. A ring of mass m and radius R is being rotated about its axis with con...

    Text Solution

    |

  4. ABCDE is a smooth iron track in the vertical plane. The sections ABC a...

    Text Solution

    |

  5. The earth rotates from west to east. A wind mass begins movings due no...

    Text Solution

    |

  6. A geostationary staellite S is stationed above a point P on equator. A...

    Text Solution

    |

  7. A body moves on a horizontal circular road of radius r, with a tangent...

    Text Solution

    |

  8. The density of a rod AB increases linearly from A to B its midpoint is...

    Text Solution

    |

  9. A square plate lies in the xy plane with its centre at the origin and ...

    Text Solution

    |

  10. Four identical rods each of mass m and length l are joined to form a r...

    Text Solution

    |

  11. P is the centre of mass of four point masses A,B, C and D which are ly...

    Text Solution

    |

  12. When slightly different weights are placed on the two pans of a beam b...

    Text Solution

    |

  13. A body is in equilibrium under the influence of a number of forces. Ea...

    Text Solution

    |

  14. A block with a square base measuring axa and height h, is placed on a...

    Text Solution

    |

  15. Two men support a uniform horizontal beam at its two ends, if one of t...

    Text Solution

    |

  16. A man spinning in free space changes the shape of his body, eg. By spr...

    Text Solution

    |

  17. A man standing on a platform holds weights in his outstretched arms. T...

    Text Solution

    |

  18. A horizontal disc rotates freely about a vertical axis through its cen...

    Text Solution

    |

  19. Two horizontal discs of different radii are free to rotate about their...

    Text Solution

    |

  20. A constant external torque tau acts for a very brief period /\t on a r...

    Text Solution

    |