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Both earth and moon are subjected to the...

Both earth and moon are subjected to the gravitational force of the sun. As observed from the sun, the orbit of the moon

A

will be elliptical

B

will not be strictly elliptical because the total gravitational force on it is not central

C

is not elliptical but will necessarily be a closet curve

D

deviates considerably from being elliptical due to influence of planets other than the earth

Text Solution

Verified by Experts

The correct Answer is:
B
As observed from the sun, two types of forces are acting on the moon one is due to gravitational attraction between the attraction between the earth and the moon. Hence, total force on the moon is not central.
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DC PANDEY ENGLISH-GRAVITATION-(A) Chapter Exercises
  1. As observed from earth, the sun appears to move in an approximate circ...

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  2. Satellite orbiting the earth have finite life and sometimes debris of ...

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  3. Both earth and moon are subjected to the gravitational force of the su...

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  4. In our solar system, the inter-planetary region has chunks of matter (...

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  5. Choose the wrong option

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  6. Different points in the earth are at slightly different distances from...

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  7. Two satellite of same mass are launched in the same orbit of radius r ...

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  8. Compute the additional velocity required by a satellite orbiting aroun...

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  9. Particles of masses 2M, m and M are respectively at points A, B and C ...

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  10. Earth orbiting satellite will escape if

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  11. The energy required to move a satellite of mass m from an orbit of rad...

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  12. A body attains a height equal to the radius of the earth. The velocity...

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  13. Suppose the gravitational attraction varies inversely as the distance ...

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  14. The rotation of the earth about its axis speeds up such that a man on ...

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  15. The rotation of the earth radius R about its axis speeds upto a value ...

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  16. Assume the radius of the earth to be 6.4xx10^(6)m a. Calculate the t...

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  17. If gravitational attraction between two points masses be given by F=G(...

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  18. Suppose the gravitational force varies inversely as the n^(th) power o...

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  19. A body is projected vertically upwards from the surface of the earth w...

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  20. A particle takes a time t(1) to move down a straight tunnel from the s...

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