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A geo-stationary satellite is orbiting the earth of a height of  above the surface of earth, R. being the radius of earth. The time period of another satellite at a height of 2.5R  from the surface fo earth is  hr

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

The correct answer is: 6/square root of 2

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