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Scalars are physical quantities which ar...

Scalars are physical quantities which are completely specified by __________

A

number and unit

B

number only

C

unit only

D

neither number nor unit

Text Solution

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The correct Answer is:
A
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TARGET PUBLICATION-SCALARS AND VECTORS-Critical Thinking
  1. Scalars are physical quantities which are completely specified by

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  2. A vector is not changed if

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  3. The velocity vector of a stationary particle is

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  4. If the angle between two collinear vector is pi radians, vector are sa...

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  5. If the angular displacement is large, it is a scalar quantity because

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  6. Angular momentum is

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  7. The component of a vector may be

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  8. Which of the following is NOT essential for three forces to produce ze...

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  9. Following sets of three forces act on a body. Whose resultant can not ...

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  10. If more than one forces are acting on a heavy rigid body such that the...

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  11. The vector projection of a vector 3hat(i)+4hat(k) on y-axis is

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  12. A vector is represented by 3hat(i)+hat(j)+2hat(k) Its length in XY pl...

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  13. A particle is simultaneously acted by two forces equal to 4 N and 3N. ...

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  14. The resultant of two vectors at right angles is 5 N. If the angle betw...

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  15. vec(A) is a vector with magnitude A, then the unit vector hat(A) in th...

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  16. If a unit vector is represented by 0.5 hat(i)-0.8 hat(j)+chat(k), then...

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  17. A Unit vector in the direction of the negative of the vector (-hat(i)+...

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  18. If vec(A)=2hat(i)+6hat(j)and vec(B)=4hat(i)+3hat(j), the vector having...

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  19. If the sum of two unit vectors is a unit vector, then magnitude of dif...

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  20. A vector of magnitude b is rotated through angle theta. What is the ch...

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