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Write principle of Homogeneity of dimens...

Write principle of Homogeneity of dimension.

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Magnitude of physical quantities having same dimension can be added together or subtracted from one another.
This principle is called principle of homogeneity of dimension.
This rule is very useful to check dimensional consistency of given equation.
To check dimensional consistency of given equation all terms on both side of the equation should have same dimension.
Dimensional consistency do not guarantee correctness of equation.
It is uncertain to the extent of dimensionless quantities or function.
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KUMAR PRAKASHAN-UNITS AND MEASUREMENT-SECTION -A (QUESTIONS- ANSWERS)
  1. Explain Absolute Error, Relative Error and Percentage Error.

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  2. Write a note on combination of error.

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  3. Explain error of a sum or a difference.

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

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  5. What is significant number? What is significant digit?

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

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  7. Write rules of "Round off" numbers.

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

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  9. What points to be considered during addition.

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  10. What points to be considered during multiplication and division of sig...

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  11. Explain uncertainty or error in given asurement by suitable example.

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  12. What is dimension of a physical quantity ?

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  13. Define dimensional formula and dimensional equation by using sultable ...

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  14. What is dimensional analysis ?

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  15. Obtain the relation between the units of some physical quantity in two...

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  16. Obtain the relation between the MKS and CGS unit of work.

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  17. Write principle of Homogeneity of dimension.

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  18. Check dimensional consistency of given equation.

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  19. Heat produced in a current carrying conducting wire depends on current...

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  20. Write limitation of dimensional analysis.

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