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What is order of magnitude? Explain with...

What is order of magnitude? Explain with some examples.

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CHETANA PUBLICATION-UNITS AND MEASUREMENTS-EXERCISE
  1. Can two different physical quantities have same dimensions?

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  2. A dimensionally correct equation need not be actually correct, but a d...

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  3. What is order of magnitude? Explain with some examples.

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  4. Define significant figures and state the rules for determining signif...

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  5. What is an error explain types of error.

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  6. What are the methods to minimise errors?

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  7. The length, breadth, and thickness of a rectangular sheet of metal are...

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  8. The diameter of a sphere is 2.14 cm. Calculate the volume of the spher...

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  9. Find the dimensions of Coefficient of viscosity (eta)

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  10. Find the dimensions of Resistance of a wire frac(dv)(dx^2) = velocity ...

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  11. Using method of dimensional analysis show that 1 J = 10^7 erg.

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  12. Express a pressure of 50 N//m^2 in terms of dyne//cm^2

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  13. Density of water is 1 gm//cc in the CGS units. Express it in S.I units

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  14. Show that the equation V = u + at is dimensionally correct.

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  15. The pressure (P) of a liquid column dependsonits height h, the density...

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  16. What is order of magnitude of one year in terms of seconds?

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  17. The radius of a nucleus of mass number 'A' is given by R = 1.3 xx 10^-...

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  18. State the order of magnitude of radius of the earth. Given R = 6400 km

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  19. The thickness of a glass sheet is measured at six different places and...

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  20. The volume of a solid cylinder of length 10 cm and radius 4 cm is meas...

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