Home
Class 12
PHYSICS
The projection of bar(A) = 2hati +2hatj ...

The projection of `bar(A) = 2hati +2hatj +5hatk` on to `bar(B) = hati -hatj` is:

A

Zero

B

`(4)/(sqrt(2))`

C

`-(4)/(sqrt(2))`

D

4

Text Solution

Verified by Experts

The correct Answer is:
A
Projection of `vec(A)` onto `vec(B) = (vec(A) + vec(B))/(B) =0`.
Promotional Banner

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.12|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.13|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.10|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise High Level Problems (HIP)|21 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

The resultant vector of of bar(OA) = 2hati + 3hatj + 6hatk and bar(OB) = 2hati - 5hatj + 3hatk is

What is the projection of vec(A) = hati + hatj+ hatk on vec(B) = (hati + hatk)

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

Find the projection of the vector hati-2hatj+hatk on the vector 4hati-4hatj+7hatk .

what is the projection of veca=hati+hatj+hatk on the vecb=hati+hatj

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

Find a unit vector in the diection of the vector. (i) (3hati + 4hatj - 5hatk) , (ii) (3hati - 2hatj + 6hatk) (iii) (hati + hatk) , (iv) (2hati + hatj + 2hatk)

RESONANCE-DAILY PRACTICE PROBLEM-DPP No.11
  1. A particle is projected with speed 10 m//s at angle 60^(@) with the ho...

    Text Solution

    |

  2. Figure shows the velocity time graph of a particle moving along straig...

    Text Solution

    |

  3. Two projectiles A and B are projected with same speed at an angle 30^(...

    Text Solution

    |

  4. For ground to ground projectile motion equation of path is y=12x-3//4x...

    Text Solution

    |

  5. A particle is projected from the inclined plane at angle 37^(@) with t...

    Text Solution

    |

  6. For a particle under going rectilinear motion with uniform acceleratio...

    Text Solution

    |

  7. For which of the following graphs the average velocity of a particle m...

    Text Solution

    |

  8. A train starts form station A at 1pm and reaches station B at 3pm, aft...

    Text Solution

    |

  9. A body is projected horizontally with speed 30m//s from a very high to...

    Text Solution

    |

  10. The projection of bar(A) = 2hati +2hatj +5hatk on to bar(B) = hati -ha...

    Text Solution

    |

  11. A body dropped from the top of a tower covers 7/16 of the total height...

    Text Solution

    |

  12. A man is 180 cm tall and his eyes are 10 cm below the top of his head....

    Text Solution

    |

  13. A thick plane mirror shows a number of images of the filament of an el...

    Text Solution

    |

  14. A body is located on a wall. Its image of equal size is to be obtained...

    Text Solution

    |

  15. An equiconvex lens is cut into two halves along (i) XOX^(') and (ii) Y...

    Text Solution

    |

  16. A light is incident on face AB of an equilateral glass prism ABC. Afte...

    Text Solution

    |

  17. In a compound microscope

    Text Solution

    |

  18. A thin prism of glass is placed in air and water respectively. If n(0)...

    Text Solution

    |

  19. The deviation caused for red, yellow and violet colours for crown glas...

    Text Solution

    |

  20. The velocity at the maximum height of a projectile is half of its velo...

    Text Solution

    |