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10 Question-answer on Kepler's law 1.        Kepler III law i.e. T 2 is proportional to R 3 , is a consequence of law of conservation of: (a)     Linear momentum (b)    Angular momentum (c)     Energy (d)    Law of quantization of angular momentum Ans: ( b) 2.        A geostationary satellite is orbiting the earth at a height 6R above the surface of earth, where R is radius of earth. The time period of another satellite at a height 2.5 R from the earth surface would be: (a)     24 hrs (b)    6/2.5 hrs (c)     2.5/6 hrs (d)    6√2 hrs Ans: (d) 3.        The time period of a satellite in a circular orbit of radius R is T. The radius of the orbit in which time period is 8 T is: (a)     2R (b)    3R (c)     4R (d)    5R ...