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What is the order of mean free path of a...

What is the order of mean free path of an aire molecule ?

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Mean free path of an air molecule is of the order of `10^(-6)m.`
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PRADEEP-PHYSICAL WORLD AND MEASUREMENT-Very short Answer Questions
  1. What does the word LASER stand for ?

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  2. What is the order of size of out galaxy ?

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  3. What is the order of mean free path of an aire molecule ?

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  4. What is the smallest mass measured indirectly so far?

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  5. How are the pitch and least count of a spherometer related ?

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  6. What is meant by angular diameter of moon ? What is its value?

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  7. What is the order of mass fo uiverse.

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  8. Which technique is used for measuring age of rocks, fossils etc.

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  9. Are there more microseconds in a second than the number of seconds in ...

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  10. Express in scientific notation : (i) 13780 kg (ii) 0.00000523 s

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  11. What is the efficiency of time realisation in cesium atomic clocks ?

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  12. What is the difference between inertial mass and gravitational mass of...

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  13. Which is the world's most accurate clock ? What is its accuracy?

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  14. What is the order of age of the earth ?

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  15. Human life expectancy is of the order of

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  16. What is the order of mass of universe ?

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  17. What is the smallest mass measured indirectly so far?

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  18. Wlidt is the shortest time interval measured indirectly so far ?

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  19. Name the physical quantites having dimensions [M^1 L^2 T^(-2)].

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  20. Name two physical quantities which have dimesion [M^1L^(-1)T^(-2)].

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