Home
Class 11
PHYSICS
A constant power is suppied to a rotatin...

A constant power is suppied to a rotating disc. The relationship between the angular velocity `(omega)` of the disc and number of rotations `(n)` made by the disc is governed by

A

`omegapropn^(1/3)`

B

`omegapropn^(2/3)`

C

`omegapropn^(3/2)`

D

`omegapropn^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES

    NARAYNA|Exercise Level-1(C.W.)|64 Videos
  • SYSTEM OF PARTICLES

    NARAYNA|Exercise Level-II(C.W.)|64 Videos
  • SYSTEM OF PARTICLES

    NARAYNA|Exercise Level-VI|78 Videos
  • PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|10 Videos
  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    NARAYNA|Exercise EXERCISE - IV|39 Videos

Similar Questions

Explore conceptually related problems

A disc is rotating with angular velocity omega . If a child sits on it, what is conserved?

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

A disc is rotaing with an angular velocity omega_(0) . A constant retarding torque is applied on it to stop the disc. The angular velocity becomes (omega_(0))/(2) after n rotations. How many more rotations will it make before coming to rest ?

A circular disc is rotating about its own axis at a uniform angular velocity omega . The disc is subjected to uniform angular retardation by which its angular velocity is decreased to omega/2 during 120 rotations. The number of rotations further made by it before coming to rest is

A cockroach is moving with velocity v in anticlockwise direction on the rim of a disc of radius R of mass m . The moment of inertia of the disc about the axis is I and it is rotating in clockwise direction with an angular velocity omega . If the cockroach stops, the angular velocity of the disc will be

A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to the plane with angular velocity omega . Another disc of same mass but half the radius is gently placed over it coaxially. The angular speed ofthe composite disc will be:

A circular disc is rotating without friction about its natural axis with an angular velocity omega . Another circular disc of same material and thickness but half the raduis is gently placed over it coaxially. The angular velocity of composite disc will be

Two discs of radii R and 2R are pressed against eachother. Initially, disc wit radius R is rotating with angular velocity omega and other disc is stationary. Both discs are hinged at their respective centres and are free to rotate about them. Moment of inertiaof smaller disc is I and of bigger disc is 2I about their respective axis of rotation. Find the angular velocity of bigger disc after long time.

A disc of mass m has a charge Q distributed on its surface. It is rotating about an XX' with a angular velocity omega . The force acting on the disc is

When a disc rotates with uniform angular velocity, which of the following is not true ?

NARAYNA-SYSTEM OF PARTICLES-C.U.Q.
  1. A motor car is moving in a circular path with uniform speed v. Suddenl...

    Text Solution

    |

  2. An electric motor rotates a wheel at a constant angular velocity (omeg...

    Text Solution

    |

  3. A constant power is suppied to a rotating disc. The relationship betwe...

    Text Solution

    |

  4. An ice block is in a trough which is rotating about vertical axis pass...

    Text Solution

    |

  5. A circular disc is rotating about its own axis, the direction of its a...

    Text Solution

    |

  6. A ballet dancer is rotating about his own vertical axis on smooth hori...

    Text Solution

    |

  7. If polar ice caps melt, then the time duration of one day

    Text Solution

    |

  8. A hollow sphere partly filled with water has moment of inertia I when ...

    Text Solution

    |

  9. If most of the population on earth is migrated to poles of the earth t...

    Text Solution

    |

  10. The law of conservation of angular momentum is obtained from Newton's ...

    Text Solution

    |

  11. If earth shrinks then the duration of day

    Text Solution

    |

  12. A circular disc is rotating in horizontal plane about vertical axis pa...

    Text Solution

    |

  13. A ballet dancer is rotating about his own vertical axis. Without exter...

    Text Solution

    |

  14. The following motion is based on the law of conservation of angular mo...

    Text Solution

    |

  15. Two bodies with moment of inertia I1 and I2 (I2 gt I1) are rotating wi...

    Text Solution

    |

  16. A solid sphere is rotating in free space. If the radius of the sphere ...

    Text Solution

    |

  17. A circular wheel is rotating in horizontal plane without friction abou...

    Text Solution

    |

  18. A uniform metal rod of length L and mass M is rotating about an axis p...

    Text Solution

    |

  19. A gymnast standing on a rotating stool with his arms outstretched, sud...

    Text Solution

    |

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

    Text Solution

    |