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Diameter and mass of a planet is double ...

Diameter and mass of a planet is double that earth. Then time period of a pendulum at surface of planet is how much times of time period at earth surface :-

A

`1/sqrt(2)` times

B

`2sqrt(2)` times

C

Equal

D

None of these

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The correct Answer is:
B
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ALLEN -GRAVITATION-EXERCISE 1
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  2. If the earth stops rotating sudenly, the value of g at a place other t...

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  3. Diameter and mass of a planet is double that earth. Then time period o...

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  4. Gravitation on moon is (1)/(6) th of that on earth. When a balloon fil...

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  5. The acceleration due to gravity g and mean density of earth rho are re...

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  6. Will 1 kg sugar be more at poles or at the equator?

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  7. When you move from equator to pole, the value of acceleration due to g...

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  8. When the radius of earth is reduced by 1% without changing the mass, t...

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

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

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

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

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

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

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

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

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

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

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

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

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