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What is a light year?...

What is a light year?

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CHETANA PUBLICATION-UNITS AND MEASUREMENTS-EXERCISE
  1. What do A^@ and AU stand for?

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  2. Does the magnitude of a physical quantity depend upon the system of un...

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  3. What is a light year?

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  4. Star A is father than star B. Which star will have a large parallax an...

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  5. A large ball 2 m in radius is made up of a rope of square cross sectio...

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  6. Nuclear radius R has a dependemce on the mass number (A) as R=1.3 xx 1...

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  7. Find the order of magnitude of the following quantities: Universal gra...

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  8. Find the order of magnitude of the following quantities: Mass of elect...

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  9. Find the order of magnitude of the following quantities: Speed of ligh...

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  10. Find the order of magnitude of the following quantities: Acceleration ...

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  11. Find the order of magnitude of the following quantities: Period of ro...

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  12. State the order of magnitude of duration of a day.

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

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  14. Why is parallax method not useful for measuring distance of stars more...

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  15. Fill in the blanks with suitable conventions. (1) 1 micron =...........

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  16. Fill in the blanks with suitable conventions. (2) 1 nanometer = ........

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  17. Fill in the blanks with suitable conventions. (3) 5896 A^@ =............

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  18. Fill in the blanks with suitable conventions. (4) 1 fermi =.............

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  19. Fill in the blanks with suitable conventions. (5) 1 m =.................

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  20. Fill in the blanks with suitable conventions. (6) 1 parsec =............

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