Home
Class 11
PHYSICS
Two vectors vecA and vecB are such that ...

Two vectors `vecA` and `vecB` are such that `vecA+vecB=vecC` and `A^2+B^2=C^2`. If `theta` is the angle between positive direction of `vecA` and `vecB` then the correct statement is

A

`theta=pi`

B

`theta=(2pi)/3`

C

`theta=0`

D

`theta=pi/2`

Text Solution

Verified by Experts

The correct Answer is:
D
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

If theta is the angle between the unit vectors veca and vecb , then prove that cos((theta)/2)=1/2|veca+vecb|

The vectors vecA and vecB are such that |vecA+vecB|=|vecA-vecB| . The angle between two vectors will be

If theta is the angle between the unit vectors veca and vecb , then prove that sin (theta/2)=1/2|veca-vecb|

What is the angle between vector vecA and the resultant of (vecA+vecB) and (vecA-vecB) ?

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

If veca and vecb are two vectors, such that veca.vecbgt0 and |veca.vecb|=|vecaxxvecb| then the angle between the vectors veca and vecb is

If veca+vecb=vecc , and a+b=c then the angle between veca and vecb is

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

Let veca,vecb and vecc be the non zero vectors such that (vecaxxvecb)xxvecc=1/3 |vecb||vecc|veca. if theta is the acute angle between the vectors vecb and vecc then sintheta equals (A) 1/3 (B) sqrt(2)/3 (C) 2/3 (D) 2sqrt(2)/3

PATHFINDER-VECTOR-I AND VECTOR-II-QUESTION BANK
  1. If a unit vector is represented by 0.5hati + 0.8hatj + chatk the value...

    Text Solution

    |

  2. If |vecA + vecB| = |vecA - vecB|, then the angle between vecA and vecB...

    Text Solution

    |

  3. Two vectors vecA and vecB are such that vecA+vecB=vecC and A^2+B^2=C^2...

    Text Solution

    |

  4. Given that P =12, Q = 5 and R = 13 also vecP + vecQ = vecR , then the ...

    Text Solution

    |

  5. The angle between vecP+vecQ and vecP-vecQ will be

    Text Solution

    |

  6. The vectors vecP = ahati + ahatj+ 3hatk and vecQ = ahati-2hatj-hatk ar...

    Text Solution

    |

  7. The value of n so that vectors 2hati+3hatj-2hatk, 5hati+nhatj+hatk and...

    Text Solution

    |

  8. If veca and vecb are two vectors then the value of (veca+vecb)xx(veca-...

    Text Solution

    |

  9. The angle between the two vectors vecA=3hati+4hatj+5hatk and vecB=3hat...

    Text Solution

    |

  10. Maximum and minimum values of the resultant of two forces acting at a ...

    Text Solution

    |

  11. Which of the following expressions are meaningful ?

    Text Solution

    |

  12. The vector i+xj+3 si rotated through an angle theta and doubled in mag...

    Text Solution

    |

  13. Given sin(A+B)=sinAcosB+cosAsinB, which of the following relationships...

    Text Solution

    |

  14. If y=sinx, then dy/dx=0, for x=

    Text Solution

    |

  15. For the condition x^2-1gt0, we have

    Text Solution

    |

  16. If x=loget, then select the correct option(s)

    Text Solution

    |

  17. The resultant amplitude of two waves is given by R=sqrt(A^2+B^2+2ABcos...

    Text Solution

    |

  18. Two vectors vecA and vecB are inclined at an angle theta with each oth...

    Text Solution

    |

  19. Given veca+vecb+vecc+vecd=0. Which of the following statements is(are)...

    Text Solution

    |

  20. which of the following statement(s) is (are) correct?

    Text Solution

    |