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hata, hatb and hatc are unit vectors....

`hata, hatb and hatc` are unit vectors. If the `hata +hatb = hatc`, them the magnitude of `hata -hatb` is :

A

`(1)/(sqrt(3))`

B

`(1)/(sqrt(2))`

C

`sqrt(2)`

D

`sqrt(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
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GRB PUBLICATION-VECTORS-OBJECTIVE QUESTIONS
  1. Projection of 2hati + 6hatj on Z-axis is :

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  4. Diagonals of a parallelogram are respresented by vectors vecA = 5ha...

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  5. A particle is moving on a cicular path of radius 'R' . As it moves ...

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  6. If vec(A) makes an angle alpha, beta and gamma from x,y and z axis res...

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  7. Magnitudes of vectors vecP, vecQ and vecR are equal, If vecP + vecQ+...

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  8. A vector vecA is rotated through angle theta about its tail. Chan...

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  9. A particle is moving on a circular path with a constant speed 'v'. ...

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  10. Linear momentum of an object can be expressed as vecP= (4 cos t)ha...

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  11. vecA and vecB are two vectors. (vecA + vecB) xx (vecA - vecB) can...

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  12. Vertices of a triangle are A(3, 1, 2), B(1, -1, 2) and C(2, 1, 1). ...

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  13. A vector remins unchanged on :

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  14. The velocity of a particle is v=6hati+2hatj-2hatk The component of the...

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  15. A particle is displaced from a position 2hati-hatj+hatk (m) to another...

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  16. Two vectors vecP and vecQ that are perpendicular to each other are ...

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  17. The angle between the two vectors vecA=5hati+5hatj and vecB=5hati-5hat...

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  18. A paricle starting from the origin (0,0) moves in a straight line in (...

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  19. The sum of two vectors A and B is at right angles to their difference....

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  20. If vecA=2hati+3hatj-hatk and vecB=-hati+3hatj+4hatk then projection of...

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