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  1. Kepler's law of planetary motion states that the square of the time period is proportional to the

  2. A.

     Semi-major axis

    B.

     Square of the semi-major axis

    C.

     Cube of the semi-major axis

    D.

     Fourth power of the semi-major axis

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    Answer : Option C

    Explanation :

    The square of the time period of the planet is directly proportional to the cube of the semimajor axis of its orbit.


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