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The mass of moon 1% of mass of earth. Th...

The mass of moon 1% of mass of earth. The ratio of gravitational pull of earth on moon and that of moon on earth will be

A

`1 : 1`

B

`1 : 10`

C

`1 : 100`

D

`2 : 1`

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The correct Answer is:
A
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ALLEN -GRAVITATION-EXERCISE 1
  1. Weight of a body of mass m decreases by 1% when it is raised to height...

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  2. Acceleration due to gravity at earth's surface if 'g' m//s^(2). Find t...

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  3. The mass of moon 1% of mass of earth. The ratio of gravitational pull ...

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  4. Imagine a new planet having the same density as that of earth but 3 ti...

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  5. The change in the value of g at a height h above the surface of the ea...

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  6. If the speed of rotation of earth about its axis increases, then the w...

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  7. A body weighs W newton at the surface of the earth. Its weight at a he...

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  8. The imaginary angular velocity of the earth for which the effective ac...

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  9. A particle falls on earth : (i) from infinity. (ii) from a height 10...

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  10. Two different masses are droped from same heights. When these just str...

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  11. By which curve will be variation of gravitational potential of a hollo...

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  12. Gravitational potential difference between surface of a planet and a p...

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  13. If M(e) is the mass of earth and M(m) is the mass of moon (M(e)=81 M(m...

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  14. The gravitational potential energy is maximum at :

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  15. A missile is launched with a velocity less than the escape velocity. T...

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  16. A body attains a height equal to the radius of the earth when projecte...

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  17. The gravitational potential energy of a body at a distance r from the ...

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  18. A particle falls towards the earth from inifinity. The velocity with w...

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  19. A projectile of mass m is thrown vertically up with an initial velocit...

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  20. Two small and heavy spheres, each of mass M, are placed a distance r a...

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