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Which of the following orbits is a possi...

Which of the following orbits is a possible orbit for a planet?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
According to Kepler's first law, every planet moves in an elliptical orbit with the sun situated at one of the foci of the ellipse. In options (a) and (b) sun is not at a focus while in (c) the planet is not orbit around the sun. Only (d) represents the possible orbit for a planet.
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A2Z-GRAVITATION-Chapter Test
  1. Which of the following orbits is a possible orbit for a planet?

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  2. A satellite of the earth is revolving in a circular orbit with a unifo...

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  3. The earth E moves in an elliptical orbit with the sun S at one of the ...

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  4. Different points in the earth are at slightly different distance from ...

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  5. A body weighs 700gm wt on the surface of the earth. How much will it w...

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  6. If the mass of a planet is 10% less than that of the earth and the rad...

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  7. Determine the speed with which the earth would have to rotate on its a...

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  8. In order to shift a body of mass m from a circular orbit of radius 3R ...

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  9. A tunnel is dug along a diameter of the earth. Find the force on a par...

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  10. The value of g at a certain height h above the free surface of the ear...

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  11. Suppose that the acceleration of a free fall at the surface of a dista...

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  12. Three uniform spheres each having a mass M and radius a are kept in su...

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  13. A body of mass m rises to a height h=R//5 from the earth's surface whe...

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  14. A man weighs 80 kg on the surface of earth of radius r. At what height...

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  15. The gravitational potential energy of an isolated system of three part...

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  16. Consider two solid uniform spherical objects of the same density rho. ...

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  17. A body starts from rest from a point distant r(0) from the centre of t...

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  18. If the radius of the earth decreases by 10%, the mass remaining unchan...

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  19. Suppose the gravitational force varies inversely as the nth power of d...

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  20. A satellite of mass m revolves around the earth of radius R at a hight...

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  21. A spaceship is launched into a circular orbit close to the earth's sur...

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