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

`omega prop n^(1//3)`

B

`omega prop n^(3//2)`

C

`omega prop n^(2//3)`

D

`omega prop n^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RIGID BODY MOTION

    ANURAG MISHRA|Exercise COMPREHENSION_TYPE|29 Videos

  • RIGID BODY MOTION

    ANURAG MISHRA|Exercise MATCH THE COLUMN|12 Videos

  • RIGID BODY MOTION

    ANURAG MISHRA|Exercise SCQ_TYPE|83 Videos

  • IMPULSE AND MOMENTUM

    ANURAG MISHRA|Exercise matching|3 Videos

  • UNIT AND DIMENSIONS

    ANURAG MISHRA|Exercise Matching Type Problem|4 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 ?

ANURAG MISHRA-RIGID BODY MOTION-MCQ_TYPE
  1. A solid cube of side 2a and mass M, sliding on a smooth surface with v...

    Text Solution

    |

  2. A large spool of rope stands on the ground with the end of the rope ly...

    Text Solution

    |

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

    Text Solution

    |

  4. A force F is applied on the top of a cube as shown in the figure. The ...

    Text Solution

    |

  5. A uniform rod AB of mass m and length l is at rest on a smooth horizon...

    Text Solution

    |

  6. A rod AB of length 1m is placed at the edge for a smooth table as show...

    Text Solution

    |

  7. Two cylinders having radii 2R and R and moment of inertia 4I and I abo...

    Text Solution

    |

  8. The acceleration alpha of the plank P required to keep the centre C of...

    Text Solution

    |

  9. A rod of mass m and length l is hinged at one of its end A as shown in...

    Text Solution

    |

  10. A uniform rod of length l is pivoted at point A. It is struck by a hor...

    Text Solution

    |

  11. In the figure shown mass of both, the spherical body and block is m. M...

    Text Solution

    |

  12. A particle is projected with velocity v at an angle of theta with hori...

    Text Solution

    |

  13. In the figure shown, the plank is being pulled to the right with a con...

    Text Solution

    |

  14. Two men each of mass m stand on the rim of a horizontal circular disc,...

    Text Solution

    |

  15. A time varying force F = 2t is applied on a spool as shown in figure. ...

    Text Solution

    |

  16. A spherical body of radius R rolls on a horizontal surface with linear...

    Text Solution

    |

  17. A thin uniform rod AB of mass 1kg move translationally with accelerati...

    Text Solution

    |

  18. The torque tau on a body about a given point is found to be equal to A...

    Text Solution

    |

  19. A ball moves over a fixed track as shown in the figure. From A and B t...

    Text Solution

    |

  20. A uniform cylinder of mass M and radius R rolls without slipping down ...

    Text Solution

    |