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Define a second in terms of vibrations o...

Define a second in terms of vibrations of caisium -133 atom.

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JBD PUBLICATION-PHYSICAL WORLD AND MEASUREMENT-EXAMPLE
  1. What is Laser?

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  2. Define amu.

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  3. Define a second in terms of vibrations of caisium -133 atom.

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  4. An observer takes 10 observations in an experiment .I he repeats the s...

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  5. Round off the folowing number (i)7.250 to two digits

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  6. Round off the folowing number (ii) 9.350 to two digits

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  7. Round off the folowing number (iii)0.89991 to two digits

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  8. Round off the folowing number (iv) 12.853 to three digits.

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  9. Round off the folowing number (v) 6.993 xx 10^4 to three digits.

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  10. Solve with due regard to significant figure(12.4-12.21)^(1/2).

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  11. Weight of a body is 6.34 g and its volume is 1.7 cm^3.Wha will be the ...

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  12. If the error in the measurement of radius of a sphere is 3%,then what ...

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  13. Which of the following is the most precise device for measuring length...

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  14. Which of the following is the most precise device for measuring length...

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  15. Which of the following is the most precise device for measuring length...

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  16. What is the number of significnt figures in 0.00680?

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  17. Are all constants dimensioneless?Give examples in your support.

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  18. What are dimensions of energy density?

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  19. Can a physical quanitty have different dimensions in different systems...

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  20. What is the dimension of [T] in angular acceleration?

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