Self Studies

Gravitation Tes...

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  • Question 1
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    India’s first artificial satellite was:

  • Question 2
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    According to Kepler’s Third Law:

  • Question 3
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    Weightlessness is:

  • Question 4
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    Different planets have different escape velocities because:

  • Question 5
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    Kepler’s second law states that the straight line joining the planet to the sun sweeps out equal areas in equal time. The statement is equivalent to saying that:

  • Question 6
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    A satellite which appears to be at a fixed position at a definite height to an observer is called:

  • Question 7
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    The squares of the periods of revolution of the planets are proportional to the ___________of their semimajor axis of its orbit.

  • Question 8
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     Which is untrue about orbital velocity?

  • Question 9
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    A satellite moves in a circular orbit around earth. The radius of this orbit is one half that of moon’s orbit. The satellite completes one revolution in:

  • Question 10
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    Kepler’s law of areas can be understood as a consequence of:

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