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      Question

      The height of a geo-stationary satellite from the

      Earth's surface is approximately :
      A 36,000 km Correct Answer Incorrect Answer
      B 42,000 km Correct Answer Incorrect Answer
      C 30,000 km Correct Answer Incorrect Answer
      D None of these Correct Answer Incorrect Answer

      Solution

      A geostationary orbit is a circular orbit 35,786 kilometres above the Earth's equator and following the direction of the Earth's rotation. Communications satellites and weather satellites are often given geostationary orbits, so that the satellite antennas that communicate with them do not have to move to track them, but can be pointed permanently at the position in the sky where they stay.

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