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A physical quantity which has a directio...

A physical quantity which has a direction:-

A

must be a vector

B

may be a vector

C

must be a scalar

D

none of the above

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The correct Answer is:
B
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Assertion (A): A physical quantity which can be described with both magnitude and direction is called as a vector quantity. Reason (R): All vector quantities are derived quantities.

ALLEN-BASIC MATHS-EXERCISE-1
  1. The vector vecB=5hati+2hatj-Shatk is perpendicular to the vector vecA=...

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  2. Electro motive force (EMF) is :

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  3. A physical quantity which has a direction:-

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

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

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

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

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

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

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

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

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

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  13. The unit vector along hati+hatj is :

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  14. What is the projection of vecA on vecB ?

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  15. What is the angle between vecA and the rsultant of (vecAhatB) and (vec...

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

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

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  18. Which of the following vector identies is false ?

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  19. If the vectors (hati+hatj+hatk) and 3 hati form two sides of a triangl...

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  20. Which pair of the following forces will never give resultant force of ...

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