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if the universe were shrunk to the size, of earth, how large would the earth be on this scale?

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SL ARORA-Units and Measurements-Exercise
  1. IF the size of an atom ( = 1Å) were enlarged to the tip of a sharp pin...

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  2. If an atom of size 10^(-10)m were enlarged to the size of the earth (~...

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  3. if the universe were shrunk to the size, of earth, how large would the...

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  4. A neutron star has a density equal to that of nuclear matter (~= 2.8X0...

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  5. Which type of phenomenon can be used as a measure of time ? Given thre...

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  6. Why has 'second' been defined in terms of periods of radiation from Ce...

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  7. The average life of an Indian is 56 years .Find the number of times th...

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  8. The mean life of an elementary particle pion is 2xx10^(-7) ns. The age...

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  9. Find the number of seconds in 1 year. Express them in order magnitude.

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  10. Find the number of times the human heart beats in the life of 60 years...

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  11. Two atomic clocks allowend to run for a average life of an indian (s...

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  12. Age of the universe is about 10^(10) years whereas the mankind has exi...

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  13. Deduce dimensional formulae for angle.

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  14. The dimensional formula of angular velocity is

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  15. Deduce dimensional formulae for angular accelaration.

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  16. The dimensional formula of torque is

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  17. The dimensional formula for angular momentum is

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  18. Deduce dimensional formulae for moment of inertia.

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  19. Obtain dimensions of (i) impulse (ii) power (iii) surface energy (iv) ...

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  20. Give the unit and dimension of power.

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