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Dimensional formulae are used A) to co...

Dimensional formulae are used
A) to convert one system of units into another
(B) to find proportionality constants
C) to cheak the correctness of an equation

A

Onily A & B are true

B

Only C is true

C

A & C are true

D

All the true

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The correct Answer is:
C
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AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -1 A
  1. The correct order in which the dimensions of 'Length" increases in the...

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  2. (A) : : Plane angle has unit but no dimensional formula (B) : All di...

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  3. Dimensional formulae are used A) to convert one system of units into...

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  4. (A) The correctness of an equation is verified using the principle of ...

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  5. .(A): The value of dimensionless constants or proportionality constant...

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  6. Which of the following is not a unit of time A) par - sec " " B)...

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  7. Which of the following is dimensionless (a) Boltzmann constant (b) ...

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  8. For a body in a uniformly accelerated motion, the distance of the body...

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  9. Three of the quantities defined below has the same dimensional formula...

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  10. If e, E0, h and C respectively represents electronic change, permittiv...

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  11. Photon is quantum of radiation with energy E= hv where v is frequency ...

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  12. A book with many printing errors contains four different expressions f...

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  13. {:("List-I","List - 2"),((a)"Temperature", "(e)Light Year"),((b)"Mass"...

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  14. Match the following : {:("List - 1","List - 2"),((a) "second" ,(e) "...

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  15. {:("List-I","List - 2"),((a)m^(-1),(e)"Surface tension"),((b)Pa,(f)"Th...

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  16. {:("List-I","List-2"),((a)"Electron volt",(e)746 W),((b) "kWH", (f) 10...

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  17. {:("List-I","List-2"),((a)"Pressure ",(e)ML^(2)T^(-2)I^(-1)),((b)"Late...

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  18. {:("List-I","List-2"),((a)"Surface Tension ",(e)"Gas constant "),((b)...

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  19. {:("List-I","List-2"),((a)"Same negative dimensions of mass ",(e)"Pres...

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  20. Some physical constants are given in List - I and their dimensional fo...

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