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The unit vector along hati+hatj is...

The unit vector along `hati+hatj` is

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The correct Answer is:
`L^(-1), ML^(2)T^(-2)`
Dimensions of `ax=M^(@)L^(@)T^(@)`
`rArr [a]=(M^(@)L^(@)T^(@))/([L])=L^(-1)` and `[phi_(0)]=[M^(1)L^(2)T^(-2)]`
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ALLEN-BASIC MATHS-Exercise-04 [A]
  1. If hati,hatj and hatk are unit vectors along X,Y & Z axis respectively...

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  2. Two vectors vecP and vecQ that are perpendicular to each other if :

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  3. The magnitude of the vectors product of two vectors vecA and vecB may ...

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  4. Which of the following statements is not true

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

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  6. A physical quantity which has a direction:-

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  7. Which of the following physical quantities is an axial vector ? (a) mo...

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  8. The minimum number of vectors of equal magnitude needed to produce zer...

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  9. How many minimum numbers of a coplanar vector having different magntid...

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  10. How many minimum numbers of a coplanar vector having different magntid...

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  11. What is the maximum number of components into which a vector can split...

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  12. The maximum number of components into which a vector can be resolved i...

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  13. What is the maximum number of components into which a vector can split...

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

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

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  16. The unit vector along hati+hatj is

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  17. What is the projection of vecA on vecB ?

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  18. What is the angle between veca and the resultant of veca+vecb and veca...

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  19. The angle between vectors (hati+hatj+hatk) and (hatj+hatk) is :

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  20. The angle between two vectors given by (6hati+6hatk) and (7hati+4hatj+...

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