Home
Class 11
PHYSICS
If |vecA xx vecB| = sqrt3 vecA *vecB, th...

If `|vecA xx vecB| = sqrt3 vecA *vecB`, then the value of `|vecA + vecB|` is :

A

`(A^(2) + B^(2) + (AB)/(sqrt3))^(1//2)`

B

A + B

C

`(A^(2) + B^(2) + 2 AB)^(1//2)`

D

`(A^(2) + B^(2) + AB)^(1//2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SCALARS AND VECTORS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos

  • SCALARS AND VECTORS

    TARGET PUBLICATION|Exercise Critical Thinking|37 Videos

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise EXERCISE|147 Videos

Similar Questions

Explore conceptually related problems

Find the value of |-7| xx|3|

If z= frac{-2}{1+sqrt3i} , then the value of arg(z) is

What is the value of 4^3 xx 4^@ ?

If vecA, vecB and vecC are three vectors, then which of the following is not correct?

If vecA =5hati +6hatj+4hatk and vecB =2hati-2hatj+3hatk , determine the angle between vecA and vecB

A loop of wire is placed in a magnetic field B = 0.5hatiT . If the area of the loop is vecA = (3hati+6hatj+5hatk)m^2 , then what isthe, angle between vecA and vecB .

The magnetic field of an EM wave travelling along X-axis is vecB = 4 xx 10^-4 sin (wt - kx) vecK in tesla, Calculate the peak value of electric force acting on a particle of charge 5 muc travelling with a velocity of 5 xx 10^5 m/sec along the y axis.

If sqrt3 tan theta = 3 sin theta , find the value of sin theta^2 theta - cos^2 theta , where theta ne 0 .

TARGET PUBLICATION-SCALARS AND VECTORS-Competitive Thinking
  1. A vector vec(A) points verically upward and vec(B) points towards nort...

    Text Solution

    |

  2. Which of the following relation is not correct?

    Text Solution

    |

  3. What is the value of linear velocity if vecomega = 3 hati - 4hatj + ha...

    Text Solution

    |

  4. If vec(A)xxvec(B)=vec(B)xxvec(A), then the angle between vec(A) and ve...

    Text Solution

    |

  5. The moment of the force, vec F = 4 hat i + 5 hat j - 6 hat k at (2,0,-...

    Text Solution

    |

  6. A force vec F = prop hat i + 3 hat j + 6 hat k is acting at a point ve...

    Text Solution

    |

  7. Two particles A and B are moving as shown in the figure. Their total a...

    Text Solution

    |

  8. The velocity of a particle of mass m is vec(v) = 5 hat(i) + 4 hat(j) +...

    Text Solution

    |

  9. Two adjacent sides of a parallelogram are respectively by the two vect...

    Text Solution

    |

  10. Three vector vec(A),vec(B), vec(C ) satisfy the relation vec(A)*vec(B)...

    Text Solution

    |

  11. The component of a vector r along X-axis will have maximum value if

    Text Solution

    |

  12. If |vecA xx vecB| = sqrt3 vecA *vecB, then the value of |vecA + vecB| ...

    Text Solution

    |

  13. Sum of magitude of two fores is 25 N. The resultant of these forces is...

    Text Solution

    |

  14. Consider a particle on which constant forces vec(F) = hat(i) + 2hat(j)...

    Text Solution

    |

  15. A particle moves from a point (-2hat(i) + 5hat(j)) " to" " " (4hat(j) ...

    Text Solution

    |

  16. A force vec((F)) = - K(yhat(i) + x hat(j)) (where K is a positive cons...

    Text Solution

    |

  17. The vector sum of two forces is perpendicular to their vector differen...

    Text Solution

    |

  18. If vec(A)andvec(B) are two vectors then (vec(A)+vec(B))xx(vec(A)-vec(B...

    Text Solution

    |

  19. The angle between the vector vec(A) and vec(B) is theta. Find the valu...

    Text Solution

    |

  20. If the position vector of a body performing rectilinear motion is give...

    Text Solution

    |