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Define length....

Define length.

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SL ARORA-Units and Measurements-Exercise
  1. A physical quantity P = a^3b^2/cd. If the percentageerrors in the meas...

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  2. A physical quantity X is given by X=(2k^(3)l^(2))/(msqrt(n)) The p...

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  3. Define length.

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  4. Define a prototype metre

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  5. Define standard metre in terms of the wavelength of light.

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  6. What is the accuracy of the metre defined in terms of wavelength of li...

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  7. Define standard metre in terms of velocity of light.

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  8. How many light years are there in 1 metre?

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  9. Define Astronomical unit, light year and parscond. Establish relation ...

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  10. Give the relation between light year and AU

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  11. Which one of the following methods is used to measure distance of a pl...

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  12. Express 1 parsec in terms of meters . What its order of magnitude .

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  13. Express 1 parsec in terms of meters . What its order of magnitude .

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  14. Write in ascending order : light year, astronomical unit, par sec.

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  15. Name two commonly used units for wavelength of light.

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  16. Express 1 micro in metre.

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  17. Name the unit used to measure size of a nucleus and express it in metr...

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  18. Express nanometre in terms of metre and angstrom units.

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  19. Express the wavelength of yellow light (5893 A) in terms of nm.

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  20. How many nanometres are there in one metre ?

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