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What is the differecne between the measurements 4.0 cm and 4.000 cm ?

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SL ARORA-Units and Measurements-Exercise
  1. Which of the following has the same dimension as Planck's constant : T...

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  2. What are the dimensions of rate of flow?

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  3. What is the differecne between the measurements 4.0 cm and 4.000 cm ?

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  4. What significance is attached to the final zeros in a number without a...

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  5. How many significant figures are 750

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  6. How many significant figures 0.00320

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  7. If / = x , then relative error in / would be how many times the relati...

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  8. A research worker takes 100 observations in an experiment . If he repe...

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  9. Give two examples of non dimensional veriables.

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  10. Name any three dimensional constants.

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  11. Name any two non dimensional constant.

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  12. Write the dimensional formula of wavelength and frequency of a wave

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  13. If x = at + bt^(2) where x is in meter (m) and t is in hour (hr) t...

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  14. If x = at + bt^(2) where x is in meter (m) and t is in hour (hr) t...

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  15. The number of significant figures in 0.007 is

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  16. State the number of significant figures in 2.67xx10^-24 kg

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  17. How can a systematic error be eliminated ?

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

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

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

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