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Can a quantity have units, but still be ...

Can a quantity have units, but still be dimansionless?

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Yes, for example, angle is dimensionless, but it has units.
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Can a quantity have constant value and be dimensionless ?

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Can there be a physical quantity, which has no units and no dimensions?

In different of systems of units, can a quantity have different dimensions?

Can there be a physical quantity which has no units and no dimensions.

Can a quantity having dimensions may have no units ?

STATEMENT 1: Two quantities with different dimensions may have same unit. STATEMENT-2 Two quantities with different units may have same dimensions STATEMENT-3 Unitless quantities must be dimensionless too

Give one example of the following : (a) Physical quantity that is dimensionless but has a unit (b) A constant having dimensions

PRADEEP-PHYSICAL WORLD AND MEASUREMENT-Very short Answer Questions
  1. All constants are dimensionless. Comment.

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  2. If 'slap' times speed equals power, what is the dimensional formula fo...

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  3. Can a quantity have units, but still be dimansionless?

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  4. Does a quantity have different dimensions in different systems of unit...

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  5. What are the dimensions of rate of flow?

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  6. What are the dimensions of linear mass density ?

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  7. What type of quantity is Avogadro's number ?

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  8. What are the dimensions of a and b in the relation F = at + b x, whrer...

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  9. Calculate x in the equation : (velocity)^x = (pressire diff.)^(3//2)xx...

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  10. The dimensions of Boltzmann constant are the same as that of (i) press...

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  11. Measuring process is essentially ……… Fill in the blanks

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  12. What is error of measurement ?

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  13. What are personal errors ?

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  14. What is the reliability of measurement of length using a metre scale ?

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  15. Maximum absolute error in difference of two quantites is equal to ….. ...

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  16. Fill in the blanks : (i) Maximum ……… error in product of quantities is...

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  17. Which of the following length measurements is most precise and why? ...

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  18. What is precentage error in volume of a sphere, when error in measurin...

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  19. What is error in density of a cube when its mass is uncertainl by +-2 ...

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  20. Find the number of significant figures in 0.005.

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