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Assertion : SI system of units is a cohe...

Assertion : SI system of units is a coherent system of units.
Reason : In this system, all the derived units can be easily obtained from basic and supplementary units.

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SL ARORA-Units and Measurements-Exercise
  1. Two resistors of resistances R1 = 100 pm 3 ohm and R2 = 200 pm 4 ohm ...

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  2. If energy (E), velocity (v) and time (T) are fundamental units. What w...

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  3. Assertion : SI system of units is a coherent system of units. Reason...

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  4. In defining the standard of length, we have to specify the temperature...

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  5. why is it convenient to express the distancek of stars in terms of lig...

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

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  7. Is the measurement of angle dependent on the unit of length?

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  8. What is meant by angular diameter of moon ? What is its value?

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  9. For a given base line, which will show a grater parallax - a distant s...

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  10. Assertion : Parallax method cannot be used for measuring distance of ...

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  11. What is the difference between nm, mN, Nm ?

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  12. Do all physical quantities have dimensions? If no, name three physcia...

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

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  14. What is the SI unit of linear momentum?

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  15. Using the principle of homogeneity of dimensions, which of the followi...

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  16. In S=a+bt+ct^2. S is measured in metres and t in seconds. The unit of ...

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

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  18. Name the physical quantites having dimensions [M^1 L^2 T^(-2)].

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  19. Write three physical quantities having dimensions [ML^-1 T^-2].

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  20. If the units of force and length are doubled, then the unit of energy ...

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