Home
Class 11
PHYSICS
Two rigid bodies A and B rotate with rot...

Two rigid bodies A and B rotate with rotational kinetic energies `E_(A)` and `E_(B)` respectively. The moments of inertia of A and B about the axis of rotation are `I_(A)` and `I_(B)` respectively. If `I_(A) = I_(B)//4` and E_(A)= 100 E_(B), the ratio of angular momentum (L_(A)) of A to the angular momentum (L_(B)) of B is

A

25

B

`5//4`

C

5

D

`1//4`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    ERRORLESS |Exercise Practice Problems (Problems based on kinetic energy, work and power)|30 Videos

  • ROTATIONAL MOTION

    ERRORLESS |Exercise Practice Problems (Problems based on rolling on incline plane)|28 Videos

  • ROTATIONAL MOTION

    ERRORLESS |Exercise Practice Problems (Problems based on moment of inertia)|33 Videos

  • NEWTONS LAWS OF MOTION

    ERRORLESS |Exercise Self Evaluation Test|16 Videos

  • SIMPLE HARMONIC MOTION

    ERRORLESS |Exercise simple Harmonic Motion|21 Videos

Similar Questions

Explore conceptually related problems

Two rigid bodies A and B rotate with angular momenta L_(A) and L_(B) respectively. The moments of inertia of A and B about the axes of rotation are I_(A) and I_(B) respectively. If I_(A)=I_(B)//4 and L_(A)=5L_(B) , then the ratio of rotational kinetic energy K_(A) of A to the rotational kinetic energy K_(B) of B is given by

Two solid spheres A and B each of radius R are made of materials of densities rho_A and rho_B respectively. Their moments of inertia about a diameter are I_A and I_B respectively. The value of I_A/I_B is

The moment of inertia of two freely rotating bodies A and B are l_(A) and l_(B) respectively. l_(A) gt l_(B) and their angular momenta are equal. If K_(A) and K_(B) are their kinetic energies,then

The rotational kinetic energy of a rigid body of moment of inertia 5 kg-m^(2) is 10 joules. The angular momentum about the axis of rotation would be -

The moments of inertia of two rotating bodies A and B are I_(A) and I_(B). (I_(A) gt I_(B)) and their angular momenta are equal. Which one has greater K.E. ?

Two circular loops A and B of radii R and 2R respectively are made of the similar wire. Their moments of inertia about the axis passing through the centre of perpendicular to their plane are I_(A)" and "I_(B) respectively. The ratio (I_(A))/(I_(B)) is :

The moment of inertia of a rigid body in terms of its angular momentum L and kinetic energy K is

ERRORLESS -ROTATIONAL MOTION-Practice Problems (Problems based on angular momentum)
  1. The motion of planets in the solar system is an exmaple of the conserv...

    Text Solution

    |

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

    Text Solution

    |

  3. A particle of mass m moves along line PC with velocity v as shown. Wha...

    Text Solution

    |

  4. Two rigid bodies A and B rotate with rotational kinetic energies E(A) ...

    Text Solution

    |

  5. A uniform heavy disc is rotating at constant angular velocity omega ab...

    Text Solution

    |

  6. A equilaterial triangle ABC formed from a uniform wire has two small i...

    Text Solution

    |

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

    Text Solution

    |

  8. The earth E moves in an elliptical orbit with the sun S at one of the ...

    Text Solution

    |

  9. A rigid spherical body is spinning around an axis without any external...

    Text Solution

    |

  10. A uniform disc of mass M and radius R is rotating about a horizon...

    Text Solution

    |

  11. A particle undergoes uniform circular motion. About which point on the...

    Text Solution

    |

  12. A thin uniform circular disc of mass M and radius R is rotating in a h...

    Text Solution

    |

  13. A smooth sphere A is moving on a frictionless horizontal plane with an...

    Text Solution

    |

  14. A cubical block of side a is moving with velocity v on a horizontal sm...

    Text Solution

    |

  15. A stick of length L and mass M lies on a frictionless horizontal surfa...

    Text Solution

    |

  16. In a playground there is a merry-go-round of mass 120 kg and radius 4 ...

    Text Solution

    |