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A dimensionless quantity...

A dimensionless quantity

A

Never has a unit

B

Always has a unit

C

May has a unit

D

Does not exist

Text Solution

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The correct Answer is:
C
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ALLEN-PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT -EXERCISE-I DIMENSIONS
  1. The method of dimensional analysis can be used to derive which of the ...

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  2. Which of the following does not have the dimensior of force ?

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  3. Which of the following is incorrent statement

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  4. A dimensionless quantity

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  5. A unitless quantity

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  6. Which of the following is incorrect ?

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  7. Two physical quantities of which one is a vector and the other is a sc...

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  8. The equation of a wave is given by Y = A sin omega((x)/(v) -k) where...

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  9. The time dependence of a physical quantity P is given by P= P0 exp(-a...

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  10. The dimensional formula of angular velocity is

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  11. The equation of state of some gases can be expressed as (P+ (a)/(V^(2)...

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  12. A force F is given by F = at+ bt^(2) , where t is time. The dimensions...

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  13. If the energy, E = G^p h^q c^r, where G is the universal gravitational...

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  14. Match list I with II and select the correct answer :

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  15. Which of the following pairs does not have similar dimensions ?

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  16. The dimensions of torque are :

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  17. Using mass (M), length (L), time (T) and current (A) as fundamental q...

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  18. Dimensions of relative density is

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  19. The dimensions of universal gravitational constant are :-

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  20. If dimensions of A and B are different, then which of the following op...

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