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If hati,hatj and hatk are unit vectors a...

If `hati,hatj` and `hatk` are unit vectors along X,Y `&` Z axis respectively, then tick the wrong statement:

A

`hati.hati=1`

B

`hatixxhatj=hatk`

C

`hati.hatj=0`

D

`hatixxhatk=-hati`

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The correct Answer is:
D
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ALLEN-BASIC MATHS-EXERCISE-1
  1. Six vector vec(a) through vec(f) have the magnitudes and direction ind...

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  2. If vectors vecA and vecB are such that |vecA+vecB|= |vecA|= |vecB| the...

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  3. If hati,hatj and hatk are unit vectors along X,Y & Z axis respectively...

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

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  5. The magnitude of the vector product of two vectors vecA and vecB may n...

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  6. If vecPxxvecQ=vecR, then which of the following statements is not true...

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  7. The vector vecB=5hati+2hatj-Shatk is perpendicular to the vector vecA=...

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  8. Electro motive force (EMF) is :

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  9. A physical quantity which has a direction:-

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  10. Which of the following physical quantities is an axial vector ?

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  11. The minimum number of vectors of equal magnitude required to produce a...

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  12. How many minimum number of coplanar vector having different magnitudes...

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  13. How many minimum number of coplanar vector having different magnitudes...

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  14. What is the maximum number of components into which is vector can be s...

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  15. What are the maximum number of (i) rectangular component vectors (ii)c...

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  16. What is the maximum number of rectangular components into which a vect...

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  17. The vector sum of the forces of 10 newton and 6 newton can be:

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  18. Vector sum of two forces of 10N and 6N cannot be:

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  19. The unit vector along hati+hatj is :

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  20. What is the projection of vecA on vecB ?

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