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Round off the folowing number (i)7.250 t...

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

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

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

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

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

Sum of the digits of a two - digit number is 9.When we interchange the digitss, it is found that the resulting new number is greater than the original number by 27.What is the two digit number ?

One of the two digits of a two digit number is three times the other digit. If you interchange the digits of this two-digit number and add the resulting number to the original number, you get 88. What is the original number?

JBD PUBLICATION-PHYSICAL WORLD AND MEASUREMENT-EXAMPLE
  1. Define a second in terms of vibrations of caisium -133 atom.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  16. What are dimensions of energy density?

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

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

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  19. Match the physical quantities with their dimensions: .

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  20. What is dimension of length in angular momentum?

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