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Name the physical quantity used to expre...

Name the physical quantity used to express the amount of water vapour presentin air.

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SL ARORA-Units and Measurements-Exercise
  1. State the number of significant figures in 2.67xx10^-24 kg

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  2. How can a systematic error be eliminated ?

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  3. Name the physical quantity used to express the amount of water vapour ...

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  4. Write the number of significant figures in each of the measurement :- ...

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  5. Write the number of significant figures in each of the measurement:- 0...

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  6. Add 8.2 and 10.163 and round off the sum to proper number of significa...

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  7. Give approximate ratio of 1 AU and 1 light year.

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  8. How many kilograms are there in 1 amu ?

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  9. What do you understand by absolute error ?

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  10. Write the dimensional formula of stress

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  11. The dimensional formula of coefficient of viscosity is

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  12. What is meant by the term measurement of a physical quantity? How is t...

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  13. Define light year.

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  14. Define Astronomical unit, light year and parscond. Establish relation ...

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  15. Distinguish between mass and weight.

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  16. Which technique is used for the herd improvement ?

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  17. In what way is the knowledge of the dimensions of a physical quanntit...

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  18. Distinguish between the dimwnsions and unit of a physical quantity?

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  19. Define least count error. What is the value of least count error asso...

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  20. State the principle of homogeneity of dimensions.Test the dimensional ...

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