Home
Class 11
MATHS
If veca and vecb having same magnitude a...

If `veca` and `vecb` having same magnitude and angle between them is `60^(@)` and their scalar product is `(1)/(2)` then `|veca|` is

A

2

B

3

C

7

D

1

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA -I

    SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS SECTION -A (1- MARK)|9 Videos

  • VECTOR ALGEBRA -I

    SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS SECTION - B (2 - MARK)|5 Videos

  • VECTOR ALGEBRA -I

    SURA PUBLICATION|Exercise EXERCISE 8.4|10 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS - SECTION - D|3 Videos

Similar Questions

Explore conceptually related problems

if vec(a) and vec(b) are having same magnitude and angle between them is 60^(@) and their scalar product is 1/2 , then |vec(a)| is ……………

Find the magnitude of two vectors vecaandvecb , having the same magnitude and such that the angle between them is 60^(@) and their scalar product is (1)/(2) .

Find the magnitude of two vectors vec a and vec b having the same magnitude and such that the angle between them is 60^(@) and their scalar products is 1/2.

Find the magnitude of two vectors veca and vec b having the same magnitude such that the angle between them is 30^(@) and their scalar product is sqrt3 .

If veca and vecb are of equal magnitude and angle between them is 30^(@) and their |veca X vecb| =(1)/(2) then |veca| is:

If veca and vecb are two vectors and angle between them is theta , then

Two vectors have magnitudes 2 m and 3m. The angle between them is 60^0 . Find a the scalar product of the two vectors b. the magnitude of their vector product.

Let veca and vec b be two unit vectors such that angle between them is 60^(@) .Then |veca - vec b| is equal to

The scalar product vecA.vecB is equal to

SURA PUBLICATION-VECTOR ALGEBRA -I-EXERCISE 8.5
  1. A vector makes equal angle with the positive direction of the coordina...

    Text Solution

    |

  2. The vectors veca-vecb,vecb-vecc,vecc-veca are

    Text Solution

    |

  3. If ABCD is a parallelogram, then vec(AB)+vec(AD)+vec(CB)+vec(CD) is e...

    Text Solution

    |

  4. One of the diagonals of parallelogram ABCD with veca and vecb as adjac...

    Text Solution

    |

  5. If veca,vecb are the position vectors A and B then which one of the fo...

    Text Solution

    |

  6. If veca,vecb,vecc are the position vectors of three collinear points, ...

    Text Solution

    |

  7. If vecr=(9veca+7vecb)/(16) then the point P whose position vector vecr...

    Text Solution

    |

  8. If lambdahati+2lambdahatj+2lambdahatk is a unit vector,then the value ...

    Text Solution

    |

  9. Two vertices of a triangle have position vectors 3hati+4hatj-4hatk and...

    Text Solution

    |

  10. If |veca+vecb|=60,|veca-vecb|=40" ""and"" " |vecb|=46,"then" |veca|is

    Text Solution

    |

  11. If veca and vecb having same magnitude and angle between them is 60^(@...

    Text Solution

    |

  12. The value of thetain(0,(pi)/(2)) for which the vectors veca=(sintheta)...

    Text Solution

    |

  13. If |veca|=13,|vecb|=5 and veca.vecb = 60 then |vecaxxvecb| is

    Text Solution

    |

  14. Vectors veca and vecb are inclined at an angle theta = 120^(@). If |ve...

    Text Solution

    |

  15. If veca and vecb are two vectors of magnitude 2 and inclined at an ang...

    Text Solution

    |

  16. If the projection of 5hati-hatj-3hatk on the vector hati+3hatj+lambdah...

    Text Solution

    |

  17. If (1,2,4) and (2,-3lambda,-3) are the initial and terminal points of ...

    Text Solution

    |

  18. If the points whose position vectors 10hati+3hatj,12hati-5hatj and aha...

    Text Solution

    |

  19. If veca=hati+hatj+hatk,vecb=2hati+xhatj+hatk,vecc=hati-hatj+4hatk and ...

    Text Solution

    |

  20. If veca=hati+2hatj+2hatk,|vecb| =5 and the angle between veca and vecb...

    Text Solution

    |