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Write ratio of maximum and minimum lengt...

Write ratio of maximum and minimum length in the universe.

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Distance to the boundary of obserevable universe `=10^(26)` m (maximum)
Size of proton `=10^(-15)` m (minimum)
`:.` Ratio `=(10^(26))/(10^(-15))`
`=10^(41)`
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KUMAR PRAKASHAN-UNITS AND MEASUREMENT-SECTION -A (QUESTIONS- ANSWERS)
  1. What is the range of masses we study in physics ?

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  2. Explain how time was measured in ancient times. Also write note on ces...

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  3. Write ratio of maximum and minimum length in the universe.

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  4. Write ratio of maximum and minimum time observed in universe.

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  5. Write ratio of maximum and minimum mass in universe.

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  6. Explain accuracy and precision in measurement.

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  7. What is accuracy in measurement ? Accuracy depend on which factors ?

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  8. Write difference between Mistake and Error.

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  9. Write type or error in measurement of physical quantity and explain.

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  10. Explain least count and least count error. Write a note on least count...

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  11. What is estimation of error ? Write method for estimation.

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  12. Explain Absolute Error, Relative Error and Percentage Error.

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  13. Write a note on combination of error.

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  14. Explain error of a sum or a difference.

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  15. Write rule for error in result due to multiplication and division

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  16. What is significant number? What is significant digit?

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  17. Write and explain rules of determining significant digit with example.

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  18. Write rules of "Round off" numbers.

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  19. Explain : "By using significant digit we can prevent unnecessary long ...

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  20. What points to be considered during addition.

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