Home
Class 11
PHYSICS
A uniform thin bar of mass 6 m and lengt...

A uniform thin bar of mass `6 m` and length `12 L` is bend to make a regular hexagon. Its moment of inertia about an axis passing through the centre of mass and perpendicular to the plane of the hexagon is :

A

`20 mL^(2)`

B

`6 mL^(2)`

C

`(12)/(5)mL^(2)`

D

`30 mL^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    DC PANDEY|Exercise A Only One Option is Correct|86 Videos

  • ROTATIONAL MOTION

    DC PANDEY|Exercise More than one option is correct|36 Videos

  • ROTATIONAL MECHANICS

    DC PANDEY|Exercise Subjective Questions|2 Videos

  • SEMICONDUCTORS AND ELECTRONIC DEVICES

    DC PANDEY|Exercise More than One Option is Correct|3 Videos

Similar Questions

Explore conceptually related problems

A uniform thin bar of mass 6 kg and length 2.4 meter is bent to make an equilateral hexagon. The moment of inertia about an axis passing through the centre of mass and perpendicular to the plane of hexagon is _____ xx 10^(-1) kg m^2

For the same total mass which of the following will have the largest moment of inertia about an axis passing through its centre of mass and perpendicular to the plane of the body.

Moment of inertia of a ring of mass M and radius R about an axis passing through the centre and perpendicular to the plane is

A thin ring has mass 0.25 kg and radius 0.5 m. Its moment of inertia about an axis passing through its centre and perpendicular to its plane is ………… .

Derive an expression for moment of inertia of a thin circular ring about an axis passing through its centre and perpendicular to the plane of the ring.

A thin rod of mass 6 m and length 6L is bent into regular hexagon. The M.I. of the hexagon about a normal axis to plane and through centre of system is

A thin rod of mass M and length L is bent into a circular ring. The expression for moment of inertia of ring about an axis passing through its diameter is

Calculate the moment of inertia of a disc of radius R and mass M, about an axis passing through its centre and perpendicular to the plane.

A thin uniform wire of mass m and length l is bent into to shape of a semicircle. The moment of inertia of that wire about an axis passing through its free ends is

DC PANDEY-ROTATIONAL MOTION-Integer Type Questions
  1. A uniform thin bar of mass 6 m and length 12 L is bend to make a regul...

    Text Solution

    |

  2. A ring and a disc having the same mass, roll without slipping with the...

    Text Solution

    |

  3. A wheel starting from rest is uniformly acceleration with angular acce...

    Text Solution

    |

  4. Radius of gyration of a body about an axis at a distance 6 cm from it ...

    Text Solution

    |

  5. A uniform rod of mass 2 kg and length 1 m lies on a smooth horizontal ...

    Text Solution

    |

  6. A uniform rod of mass m, hinged at its upper end, is released from res...

    Text Solution

    |

  7. An uniform spherical shell of mass m and radius R starts from rest wit...

    Text Solution

    |

  8. A small pulley of radius 20 cm and moment of inertia 0.32 kg-m^(2) is ...

    Text Solution

    |

  9. If a disc of mass m and radius r is reshaped into a ring a radius 2r,t...

    Text Solution

    |

  10. A disc of mass 4 kg and radius 6 metre is free to rotate in horizontal...

    Text Solution

    |

  11. Find the acceleration of slid right circular roller A, weighing 12kg w...

    Text Solution

    |

  12. Two thin planks are moving on a four identical cylinders as shown. The...

    Text Solution

    |

  13. A wheel of radius R=1 m rolls on ground with uniform velocity v=2 m/s ...

    Text Solution

    |

  14. A cylinder rolls down on an inclined plane of inclination 37^(@) from ...

    Text Solution

    |

  15. A car is moving rightward with acceleration a=gsqrt(k)m//s^(2) . Find ...

    Text Solution

    |

  16. A uniform thin rod has mass m and length l. One end of the rod lies ov...

    Text Solution

    |

  17. A wheel of radius R=2m performs pure rolling on a rough horizontal su...

    Text Solution

    |

  18. A uniform rod of length l and mass m is suspended from one end by inex...

    Text Solution

    |