Home
Class 12
PHYSICS
The position vectors of the head and tai...

The position vectors of the head and tail of radius vector are `2hati+hatj+hatk` and `2hati-3hatj+hatk`. The linear mementium is `2hati+3hatj+hatk`. The angular momentum is :

A

`4hati-8hatk`

B

`2hati-3hatj+hatk`

C

`2hati+3hatj+hatk`

D

`2hati-hatj+hatk`.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MAGNETOSTATICS

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTION|5 Videos

  • MOCK TEST-2

    MODERN PUBLICATION|Exercise MCQs|52 Videos

Similar Questions

Explore conceptually related problems

Find the projection of the vector veca=2hati+3hatj+2hatk and vecb=hati-hatj+hatk

Show that the vectors 2hati-3hatj+4hatk and -4hati+6hatj-8hatk are collinear.

If the position vectors of A and B respectively hati+3hatj-7hatk and 5 hati-2hatj+4hatk , then find vec(AB)

The position vectors of A and B are hati-hatj+2hatk and 3hati-hatj+3hatk . The position vector of the middle points of the line AB is

Find the unit vector in the direction of thd sum of the vectors 2hati+2hatj+5hatk" and "2hati+hatj-3hatk .

Find the unit vector parallel to the resultant vector of 2hati+4hatj-5hatk and hati+2hatj+3hatk .

Find the unit vector parallel to the resultant vector of 2hati+4hatj-5hatk and hati+2hatj+3hatk .

MODERN PUBLICATION-MOCK TEST-1-MCQs
  1. The acceleration of a particle increasing linearly with timer is be. T...

    Text Solution

    |

  2. The torque of a force vecF=-3hati+hatj+5hatk acting at a point is vect...

    Text Solution

    |

  3. The position vectors of the head and tail of radius vector are 2hati+h...

    Text Solution

    |

  4. When a carpet is beaten with a stick, dust comes out of it. Explain.

    Text Solution

    |

  5. A sphere of mass m is tied to end of a string of length l and rotated ...

    Text Solution

    |

  6. A cubical block rests on a plane rough surface with coefficient of sta...

    Text Solution

    |

  7. In order that a body of 15 kg weighs zero at the equator, then the ang...

    Text Solution

    |

  8. The binding energy of a hydrogen molecule is 4.75 eV. Energy required ...

    Text Solution

    |

  9. A spherical ball contracts in volume by 0.01% when subjected to a unif...

    Text Solution

    |

  10. A particle is executing S.H.M., with the length of its path as as 8 cm...

    Text Solution

    |

  11. A stone is dropped into a well and sound of impact of stone with water...

    Text Solution

    |

  12. The P-V diagram for a cyclic process is a triangle ABC drawn in order....

    Text Solution

    |

  13. Two vessels of different materials are similar in size and other respe...

    Text Solution

    |

  14. A charge +Q is uniformly distributed over a thin ring of the radius R....

    Text Solution

    |

  15. Two very long straight parallel wires carry steady currents I and -I. ...

    Text Solution

    |

  16. A short bar magnet of amgnetic moment 25 JT^(-1) is placed with its a...

    Text Solution

    |

  17. A copper rod of length l is rotated about the end perpendicular to a u...

    Text Solution

    |

  18. A small square loop of wire of side l is placed inside a large square ...

    Text Solution

    |

  19. A convex and a concave mirror of radius 10 cm each are placed 15 cm ap...

    Text Solution

    |

  20. Unpolarised light of intensity I(0) falls on a Nicol prism. The light ...

    Text Solution

    |