Home
Class 12
PHYSICS
The vector component of vector vecA =3...

The vector component of vector
`vecA =3hati +4hatj +5hatk` along vector `vecB =hati +hatj +hatk` is :

A

`2hati +2hatj+2hatk`

B

`3hati +3hatj +3hatk`

C

`4hati + 4hatj+4hatk`

D

`5hati +5hatj+5hatk`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The projection of the vector vecA = hat - 2hatj + hatk on the vector vecB = 4hati - 4hatj + 7hatk is

What will be the projection of vector vecA= hati+hatj+hatk on vector vecB = hati + hatj ?

A unit vector in the direction of resultant vector of vecA = -2hati + 3hatj + hatk and vecB = hati + 2 hatj - 4 hatk is

The componant of vector 2 hati -3 hatj +2hatk perpendicular to the vector hati + -3 hatj + hatk is-

Find the projection of vector veca=5hati-hatj-3hatk on the vector vecb=hati+hatj+hatk .

Find the projection of the vector veca=3hati+2hatj-4hatk on the vector vecb=hati+2hatj+hatk .

The unit vector parallel to the resultant of the vectors vecA=4hati+3hatj+5hatk and vecB=-hati+3hatj-8hatk is :

The angle between the two vectors vecA=3hati+4hatj+5hatk and vecB=3hati+4hatj-5hatk will be :

Diagonals of a parallelogram are respresented by vectors vecA = 5hati - 4hatj + 3hatk and vecB = 3hati +2hatj - hatk . Area of the parallelogram is :

Find the projection oif veca=2hati+3hatj+2hatk on the vector vecb=hati+2hatj+hatk .

ALLEN-TEST PAPER 4-PHYSICS
  1. Three forces acting on a body are shown in figure. To have the resulta...

    Text Solution

    |

  2. If vecA 2 hati +hatj -hatk, vecB=hati +2hatj +3hatk, vecC=6hati -2hatj...

    Text Solution

    |

  3. The vector component of vector vecA =3hati +4hatj +5hatk along vecto...

    Text Solution

    |

  4. The angle between the vectors vecA and vecB is theta. The value of v...

    Text Solution

    |

  5. How many minimum numbers of non zero vectors in different planes can b...

    Text Solution

    |

  6. Find a unit vector perpendicular to each one of the vectors vec a =4ha...

    Text Solution

    |

  7. If veca=2hati+6hatj +3hatk, vecb=hati+lamdahatj+muhatk if veca xxvecb...

    Text Solution

    |

  8. A plate of mass 10g is in equilibrium in air due to the force exerted ...

    Text Solution

    |

  9. A laser beam of power 20W incident normally on a surface. if 25% light...

    Text Solution

    |

  10. How many photons per second does a one watt bulb emit if its efficienc...

    Text Solution

    |

  11. A hydrogen atom moving at a speed v absorbs a photon of wavelength 122...

    Text Solution

    |

  12. When a metallic surface is illuminated by a monochromatic light of lam...

    Text Solution

    |

  13. Photoelectric emission is observed from a metallic surface for frequen...

    Text Solution

    |

  14. Electric field associated with a light wave is given E= E(0) sin [1.57...

    Text Solution

    |

  15. When a monochromatic point source of light is at a distance of 0.2 m...

    Text Solution

    |

  16. Light of wavelength 200 nm incident on a metal surface of threshold wa...

    Text Solution

    |

  17. For a photoelectric experiment graph between kinetic energy of fastest...

    Text Solution

    |

  18. The componant of vector 2 hati -3 hatj +2hatk perpendicular to the ve...

    Text Solution

    |

  19. If y=5 (sin 100^(@)cos 27^(@) +cos 100^(@)sin 27^(@)) the value of y i...

    Text Solution

    |

  20. Given that =(10)/(sin x+ sqrt3 cos x) the minimum positive value of uy...

    Text Solution

    |