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The acceleration due to gravity on the s...

The acceleration due to gravity on the surface of the earth is `9.8 m*s^(-2)`. The size of a planet is the same as that of the earth, but its density is twice the density of the earth. The value of the acceleration due to gravity on that planet is

A

`19.6 m*s^(-2)`

B

`9.8 m*s^(-2)`

C

`4.9 m*s^(-2)`

D

`2.45 m*s^(-2)`

Text Solution

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The correct Answer is:
A
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CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-EXERCISE (Multiple choice Questions)
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  2. If the change in the acceleration due to gravity (g) at an altitude h ...

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  3. The acceleration due to gravity on the surface of the earth is 9.8 m*s...

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  4. A rocket is projected vertically upwards from the surface of the eart...

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  5. If one moves from the equator to the pole, the value of g

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  6. If the radius of the earth were to shrink by 1% , its mass remaining ...

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  7. If G is universal gravitational constant and g is acceleration due to ...

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  8. At what altitude (h) above the earth's surface would the acceleration ...

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  9. A planet has same density and same acceleration due to gravity as of e...

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  10. The escape velocity from the earth is ve. If both the mass and the rad...

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  11. The escape velocity of a particle of mass m is

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  12. The value of the escape velocity of a body thrown vertically upwards f...

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  13. The value of the escape velocity from the earth is ve. If the radius ...

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  14. The escape velocity of a planet is ve. From this planet a particle is...

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  15. Escape speed on the surface of a planet varies with the mass m of a bo...

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  16. The escape velocity of a body on the surface of earth is 11.2 km/ s. I...

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  17. Keeping the mass constant , if the radius of the earth is halved, then...

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  18. The weight of a body on the surface of the earth is W. The weight of t...

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  19. A planet in elliptical orbit around a star moves form the point in its...

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  20. The height of a geostationary satellite from the surface of the earth...

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