Home
Class 11
PHYSICS
It is found that abs(vecA+vecB)=absvecA....

It is found that `abs(vecA+vecB)=absvecA`. This necessarily implies :
`vecA,vecB` are perpendicular

Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENT

    PATHFINDER|Exercise QUESTION BANK|30 Videos

  • WAVE MOTION AND SOUND -I & II

    PATHFINDER|Exercise QUESTION BANK|195 Videos

Similar Questions

Explore conceptually related problems

Prove that (veca+vecb)*(veca+vecb)=|veca|^(2)+|vecb|^(2) , if and only if veca,vecb are perpendicular , given vecanevec0,vecbnevec0 . Choose the correct answer in Exercises 16 to 19.

If veca,vecb,vecc are mutually perpendicular vectors of equal magnitude show that veca+vecb+vecc is equally inclined to veca, vecb and vecc

vecA bot vecB,vecC is coplanar with vecA and vecB . Therefore,

The angle between vecA - vecB and vecA xx vecB is ( vecA ne vecB)

If |veca+vecb|=|veca-vecb| , then show that vectors veca and vecb are perpendicular to each other.

Show that vecA.vecB =1/4[abs(vecA+vecB)^2-abs(vecA-vecB)^2] .

PATHFINDER-VECTOR-I AND VECTOR-II-QUESTION BANK
  1. It is found that abs(vecA+vecB)=absvecA. This necessarily implies : v...

    Text Solution

    |

  2. It is found that abs(vecA+vecB)=absvecA. This necessarily implies : v...

    Text Solution

    |

  3. It is found that abs(vecA+vecB)=absvecA. This necessarily implies : v...

    Text Solution

    |

  4. It is found that abs(vecA+vecB)=absvecA. This necessarily implies : v...

    Text Solution

    |

  5. If force F varies with displacement x as F=3x^2+4. The rate of change ...

    Text Solution

    |

  6. If velocity v depends on time t as v=-t^2+3t+1 (where is in second). A...

    Text Solution

    |

  7. If the volume of sphere increases at constant rate Q,then the surface ...

    Text Solution

    |

  8. If the current I in resistor R varies with time t as I= a sin t (where...

    Text Solution

    |

  9. The magnitude of vectors vecA,vecB and vecC are respectively 12,5 and ...

    Text Solution

    |

  10. A particle is moving in a circle of radius r centre at O with constant...

    Text Solution

    |

  11. Two vector vecA=2hati+3hatj-4hatk and vecB=4hati+8hatj+xhatk are such ...

    Text Solution

    |

  12. A vector is not changed if :

    Text Solution

    |

  13. What is the angle between vectorP and the cross product of (vecP+vecQ)...

    Text Solution

    |

  14. A vector is turned without a change in its length through a small angl...

    Text Solution

    |

  15. What is the angle between vecP and the resultant of (vecP+vecQ) and (v...

    Text Solution

    |

  16. The sum of the magnitudes of two forces acting at point is 18 and the ...

    Text Solution

    |

  17. vecA=2hati+hatj, vecB=2hatj-hatk and vecC=6hati-2hatk. Value of vecA-2...

    Text Solution

    |

  18. The angle between veca and vecb is 0^@ then angle between 2veca and -3...

    Text Solution

    |

  19. If theta be the angle between the vectors hati+hatj and 2hatj+2hatk, t...

    Text Solution

    |

  20. Scalar projection of the vector 2hati+3hatj+2hatk on the vector hati-2...

    Text Solution

    |