Home
Class 12
PHYSICS
The kinetic energy of a rotating body de...

The kinetic energy of a rotating body depends upon

A

angular speed

B

distribution of mass

C

both angular speed and distribution of mass

D

neither angular speed nor distribution of mass

Text Solution

Verified by Experts

The correct Answer is:
C
Kinetic energy `=(1)/(2)I omega^(2) rArr` depends on I and `omega`.
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER - MH-CET 2018

    NIKITA PUBLICATION|Exercise MCQ|50 Videos

  • SEMICONDUCTORS

    NIKITA PUBLICATION|Exercise MCQS|350 Videos

Similar Questions

Explore conceptually related problems

The kinetic energy of rolling body is

On what factors does the kinetic energy of a purely rotating body depend?

On what factors does the kinetic energy of a body depend ?

The kinetic energy of the photoelectrons depends upon the

The kinetic energy of one mole of any gas depends upon

Derive an expression for the kinetic energy of a body rotating with constant angular velocity. State how it depends on the moment of inertia, and frequency and period of rotation.

Show that the moment of inertia of a body about the given axis of rotation is equal to twice the kinetic energy of rotation of the body rotating with unit angular velocity

Obtain an expression for kinetic energy of rotation of a body. Hence define moment of inertia of the body. Explain its physical significance.

NIKITA PUBLICATION-ROTATIONAL MOTION -MULTIPLE CHOICE QUESTIONS
  1. If polar ice caps melt, then the time duration of one day

    Text Solution

    |

  2. Angular momentum is

    Text Solution

    |

  3. The kinetic energy of a rotating body depends upon

    Text Solution

    |

  4. A boiled egg and a raw egg of same mass and size are made to rotate ab...

    Text Solution

    |

  5. When a circular disc of radius 0.5 m is rotating about its own axis, t...

    Text Solution

    |

  6. A circular of radius 20 cm is rotating about its own axis at an angula...

    Text Solution

    |

  7. A constant torque acting on a uniform circular disc changes its angul...

    Text Solution

    |

  8. If a particle of mass 1 gm is moving along a circular path of radius 1...

    Text Solution

    |

  9. A hollow sphere and solid sphere of the same radius rotate about their...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. A solid sphere of mass 2 kg and radius 5 cm is rotating at the rate of...

    Text Solution

    |

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

    Text Solution

    |

  14. A wheel of moment of inertia 5xx10^(-3) kg m^(2) is making 20 revoluti...

    Text Solution

    |

  15. A wheel is rotating with frequency of 500 rpm on a shaft, second ident...

    Text Solution

    |

  16. If the radius of the earth contracts to half of its present value with...

    Text Solution

    |

  17. A thin circular ring of mass m and radius R is rotating about its axis...

    Text Solution

    |

  18. Two discs of moments of inertia I(1) and I(2) about their respective a...

    Text Solution

    |

  19. A ring of mass m and radius R is rolling on a horizontal plane. If the...

    Text Solution

    |

  20. A large disc has mass 2kg and radius 0.2 m and initial angular velocit...

    Text Solution

    |