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Acceleration due to gravity at earth's s...

Acceleration due to gravity at earth's surface if 'g' `m//s^(2)`. Find the effective value of acceleration due to gravity at a height of 32 km from sea level : `(R_(e)=6400 km)`

A

`0.5 g m//s^(2)`

B

`0.99 g m//s^(2)`

C

`1.01 g m//s^(2)`

D

`0.90 g m//s^(2)`

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The correct Answer is:
B
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ALLEN -GRAVITATION-EXERCISE 1
  1. When the radius of earth is reduced by 1% without changing the mass, t...

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  2. Weight of a body of mass m decreases by 1% when it is raised to height...

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

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

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

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

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

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

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

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

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

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

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

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  14. 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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  15. The gravitational potential energy is maximum at :

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

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

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

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

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

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