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A geostationary satellite is orbiting the earth at a height of 5R above that of surface of the earth. R being the radius of the earth. The time period of another satellite in hours at a height of  2R from the surface of earth is hr.

  1. 5
  2. 10
  3. 6square root of 2
  4. 6/square root of 2

The correct answer is: 6square root of 2

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