Home
Class 11
PHYSICS
The vectorsvecA and vecB uur are such t...

The vectors`vecA` and `vecB` uur are such that |`vecA + vecB`| =|`vecA-vecB `|The angle between the two vectors is

A

0

B

`pi//3`

C

`pi//2`

D

`pi`

Text Solution

Verified by Experts

The correct Answer is:
C
`|vecA + vecB|=|vecA-vecB|` only if `theta =(pi)/(2)`
`because" "cos.(pi)/(2)=0`
Promotional Banner

Topper's Solved these Questions

  • VECTORS

    GRB PUBLICATION|Exercise MORE THAN ONE CHOICE IS CORRECT|15 Videos

  • VECTORS

    GRB PUBLICATION|Exercise ASSERTION- REASON|1 Videos

  • VECTORS

    GRB PUBLICATION|Exercise PROBLEMS FOR PARCTICE|23 Videos

  • UNITS AND DIMENSIONS

    GRB PUBLICATION|Exercise Link Compression|6 Videos

Similar Questions

Explore conceptually related problems

The vector vecA and vecB are such that |vecA+vecB|=|vecA-vecB| . The angle between vectors vecA and vecB is -

Two vectors vecA and vecB are such that vecA+vecB=vecA-vecB . Then

If vectors vecA and vecB are such that |vecA+vecB|= |vecA|= |vecB| then |vecA-vecB| may be equated to

Let veca and vecb be two vectors such that |2 veca + 3 vecb| = |3 veca + vecb| and the angle between veca and vecb is 60^(@) . If 1/8 veca is a unit vector, then |vecb| is equal to :

The two vectors vecA and vecB are drawn from a common point and vecC=vecA+vecB . Then, the angle between vecA and vecB is

If veca and vecb are non - zero vectors such that |veca + vecb| = |veca - 2vecb| then

Let veca , vecb , vecc be unit vectors such that veca .vecb =0=veca.vecc . If the angle between vecb and vecc " is " pi/6 , " then " veca equals

GRB PUBLICATION-VECTORS-OBJECTIVE QUESTIONS
  1. Two equal vector have a resultant equal to either of them, then the an...

    Text Solution

    |

  2. The resultant of two forces acting an anlge of 120^(@) is 10 kg wt and...

    Text Solution

    |

  3. The vectorsvecA and vecB uur are such that |vecA + vecB| =|vecA-vecB ...

    Text Solution

    |

  4. For the resultant of two vectors to be maximum , what must be the ...

    Text Solution

    |

  5. What are minmum number or unequal fores whose vector sum is zero ?

    Text Solution

    |

  6. Two vectors vecA and vecB lie in a plane, another vector vecC lies out...

    Text Solution

    |

  7. Two forces of magentude 7 newton and 5 newton act on a particle a...

    Text Solution

    |

  8. Two forces of 4 dyne and 3 dyne act upon a body . The resultant ...

    Text Solution

    |

  9. A force of 6 kg and another of 8 kg can be applied togther to pr...

    Text Solution

    |

  10. Out of the following the resultant of which cannot be 4 netwon ?

    Text Solution

    |

  11. In case of three vector quanitites of same type, whose resultant c...

    Text Solution

    |

  12. Five equal forces of 10 N each are applied at one point and all are ly...

    Text Solution

    |

  13. If hatn is a unit vector in the direction of the vector vecA, them ...

    Text Solution

    |

  14. An aeroplane moving in a circular path with a speed 250 km//h. The cha...

    Text Solution

    |

  15. A truck travelling due North at 50 km h^(-1) turns West and travels a...

    Text Solution

    |

  16. A boat which has a speed of 5 km// hr in steel water crosses a river...

    Text Solution

    |

  17. A river is flowing from west to east at a speed of 5 metres per minute...

    Text Solution

    |

  18. I started walking down a road to day-break facing the sun. After walki...

    Text Solution

    |

  19. A man travels 1 mile due east. Then 5 miles due south, then 2 miles du...

    Text Solution

    |

  20. I walked 4 mile, turned to my left and walked 6mile, then turned t...

    Text Solution

    |