Home
Class 11
PHYSICS
The diameter of a fly wheel is R. Its co...

The diameter of a fly wheel is `R`. Its coefficient of linear expansion is `alpha`. If its temperature is increased by `deltaT` the percentage increase in its moment of inertia is

A

`200xxalphaxxDeltaT`

B

`100xxalphaxxDeltaT`

C

`50xxalphaxxDeltaT`

D

`150xxalphaxxDeltaT`

Text Solution

Verified by Experts

The correct Answer is:
A
`Ipropl^(2)` and `(DeltaI)/I=(2Deltal)/l=2alphaDeltaT`
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES

    NARAYNA|Exercise Level-II(C.W.)|64 Videos

  • SYSTEM OF PARTICLES

    NARAYNA|Exercise Level-III|66 Videos

  • SYSTEM OF PARTICLES

    NARAYNA|Exercise C.U.Q.|83 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

The radius of a ring is R and its coefficient of linear expansion is alpha. If the temperature of ring increases by theta then its circumfrence will increase by

The diameter of a metal ring is D and the coefficient of linear expansion is alpha . If the temperature of the ring is increased by 1^(0)C , the circumference and the area of the ring will increases by

If diameter of a circle is increased by 12.5 % , find the percentage increase in its perimeter.

A metallic solid sphere is rotating about its diameter as axes of rotation. If the temperature is increased by 200^(@)C , the percentage increase in its moment of inertia is (Coefficient of linear expansion of the metal =10^(-5)//""^(@)C )

The coefficient of linear expansion of a rod is alpha and its length is L. The increase in temperature required to increase its legnth by 1% is

Coefficient of linear expansion always ____ with the increase in temperature.

A sphere made of iron is rotating about its diameter as axis alpha=1xx10^(-5).^(@)C^(-1) . If the temperature rises by 100^(@)C the percentage increase in its moment of inertia is:

NARAYNA-SYSTEM OF PARTICLES-Level-1(C.W.)
  1. Four particles each of mass m are placed at the corners of a square of...

    Text Solution

    |

  2. Four particles each of mass m are placed at the corners of a square of...

    Text Solution

    |

  3. The diameter of a fly wheel is R. Its coefficient of linear expansion ...

    Text Solution

    |

  4. Three point sized bodies each of mass M are fixed at three corners of ...

    Text Solution

    |

  5. Three point sized bodies each of mass M are fixed at three corners of ...

    Text Solution

    |

  6. Three point sized bodies each of mass M are fixed at three corners of ...

    Text Solution

    |

  7. The radius of gyration of body is 18cm when it is rotating about an ax...

    Text Solution

    |

  8. The position of axis of rotation of a body is changed so that its mome...

    Text Solution

    |

  9. A diatomic molecule is formed by two atoms which may be treated as mas...

    Text Solution

    |

  10. I is moment of inertia of a thin square plate about an axis passing th...

    Text Solution

    |

  11. Mass of thin long metal rod is 2kg and its moment of inertia about an ...

    Text Solution

    |

  12. The diameter of a disc is 1m. It has a mass of 20kg. It is rotating ab...

    Text Solution

    |

  13. If the earth were to suddenly contract to 1//n^(th) of its present rad...

    Text Solution

    |

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

    Text Solution

    |

  15. A ballet dancer is rotating about his own vertical axis at an angular ...

    Text Solution

    |

  16. A thin circular ring of mass M and radius r is rotating about its axis...

    Text Solution

    |

  17. A ballet dancer is rotating at angular velocity omega on smooth horizo...

    Text Solution

    |

  18. A particle of mass m is moving along a circle of radius r with a time ...

    Text Solution

    |

  19. If the radius of earth shrinks by 0.2% without change in its mass, the...

    Text Solution

    |

  20. A metallic circular plate is rotating about its axis without friction....

    Text Solution

    |