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(A) The correctness of an equation is ve...

(A) The correctness of an equation is verified using the principle of homogeneity
(B) All unit less quantities are dimensional less.

A

Both A &B are true

B

Both A & B are false

C

Only A is true

D

Only B is true

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The correct Answer is:
A
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AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -1 A
  1. (A) : : Plane angle has unit but no dimensional formula (B) : All di...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  20. Dimensional formula for thermal conductivity.

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