Home
Class 12
PHYSICS
The magnitudes of vectors vecA.vecB and ...

The magnitudes of vectors `vecA.vecB` and `vecC` are respectively 12,5 and 13 unira and `vecA+vecB=vecC`, then the angle between `vecA` and `vecB` is :

A

0

B

`45^(@)`

C

`pi//2`

D

`pi//d`

Text Solution

Verified by Experts

The correct Answer is:
C
`vecA+vecB=vecC`
as `vecA^(2)+B^(2)=C^(2)`
thus angle between A and B is `90^(@)`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A magnitude of vector vecA,vecB and vecC are respectively 12, 5 and 13 units and vecA+vecB=vecC then the angle between vecA and vecB is

The magnitudes of vectors vecA,vecB and vecC are 3,4 and 5 units respectively. If vecA+vecB= vecC , the angle between vecA and vecB is

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

Given : vecC=vecA+vecB . Also , the magnitude of vecA,vecB and vecC are 12,5 and 13 units respectively . The angle between vecA and vecB is

vecA, vecB and vecC are vectors such that vecC= vecA + vecB and vecC bot vecA and also C= A . Angle between vecA and vecB is :

If vecA = vecB + vecC and the magnitudes of vecA, vecB and vecC are 5,4 and 3 units respecetively, the angle between vecA and vecC is :

If veca +vecb +vecc =vec0, |veca| =3 , |vecb|=5 and |vecc| =7 , then the angle between veca and vecb is

If |veca|+|vecb|=|vecc|and veca+vecb=vecc then find the angle between veca and vecb .

If |veca|=|vecb|=|vecc|and veca+vecb=vecc then find the angle between veca and vecb .

If the angles between the vectors veca and vecb,vecb and vecc,vecc an veca are respectively pi/6,pi/4 and pi/3 , then the angle the vector veca makes with the plane containing vecb and vecc , is

ALLEN-BASIC MATHS-EXERCISE-1
  1. If vecP.vecQ=PQ then angle between vecP and vecQ is

    Text Solution

    |

  2. If the sum of two unit vectors is a unit vector, then magnitude of dif...

    Text Solution

    |

  3. The magnitudes of vectors vecA.vecB and vecC are respectively 12,5 and...

    Text Solution

    |

  4. Let vecA-hatiA Cos thetahatjA Sintheta, be any vector, Another vector ...

    Text Solution

    |

  5. Force 3N, 4N and 12 N act at a point in mutually perpendicular directi...

    Text Solution

    |

  6. If vectors vecP, vecQ and vecR have magnitudes 5, 12 and 13 units and ...

    Text Solution

    |

  7. The sum of magnitudes of two forces acting at a point is 16 N. If the ...

    Text Solution

    |

  8. At what angle must the two forces (x+y) and (x-y) act so that the resu...

    Text Solution

    |

  9. Given that P=Q=R. if vecP+vecQ=vecR then the angle between vecP & vecR...

    Text Solution

    |

  10. Given that vecA+vecB+vecC=0, out of three vectors two are equal in mag...

    Text Solution

    |

  11. The resultant of vecP and vecQ is perpendicular to vecP. What is the a...

    Text Solution

    |

  12. A vector of length l is turned through the angle theta about its tail....

    Text Solution

    |

  13. In the given figure, each box represents a function machine. A functio...

    Text Solution

    |

  14. The graph shows a linear relation between variable y and x. Consider t...

    Text Solution

    |

  15. Frequency f of a simple pendulum depends on its length l and accelerat...

    Text Solution

    |

  16. alpha and beta are the angle made by a vector from positive x & positi...

    Text Solution

    |

  17. If the force is given by F=at+bt^(2) with t is time. The dimensions of...

    Text Solution

    |

  18. The mechanical equivalent of heat J is

    Text Solution

    |

  19. Which of the following is not the unit of self inductance

    Text Solution

    |

  20. If energy (E), velcocity (V) and time (T) were chosen as fundamental p...

    Text Solution

    |