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Which units are used to measure laerge d...

Which units are used to measure laerge distance i.e. distance of planets and stars?
Which method is used for measurement?

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AU-The mena distance between earth and star
`1AU=1.496xx10^(11)m`
Light year- The distanced travelled by light in vacuum in one year
1 light year `=9.46xx10^(15)m`
Parsec- Distance at which an arc of length of 1 AU subtends an angle of 1 sec at a point parsec `=3.08xx10^(16)` m
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SURA PUBLICATION-NATURE OF PHYSICAL WORLD AND MEASUREMENT-ADDITIONAL QUESTIONS
  1. Write the methods to determine the masses of objects?

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  2. What is clock? Write the principle and its types.

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  3. Which units are used to measure laerge distance i.e. distance of plane...

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  4. Is it possible to have length and velocity both as fundamental quantit...

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  5. Which of these unit is lasrgest: AU, light year and parsec. Express th...

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  6. The radius of gold nucleus is 41.3 Fermi. Express its volume in m^(3)

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  7. Describe the relation of Physics with mathematics

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  8. What is the difference between Accuracy and Precision?

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  9. Describe the Personal errors.

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  10. Describe the errors due to external causes.

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  11. What is dimensiional equation? Given an example.

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  12. Define FPS system of units.

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  13. Define CGS system of units.

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  14. Define MKS system of units.

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  15. Define one radian (S.I standard for plane angle)

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  16. Define one steraedian(S.I standard for solid angle)

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  17. Write a note on radar method to measure larger distances.

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  18. The voltage across a wire is (100+-5)v and the current passing through...

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  19. Check the correctness of the equation E=mc^(2) using dimensional analy...

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