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what is the height of geo-stationary satellite from the surface of earth

We know that the time period T of an earth satellite is given by :

Here            R = Radius of earth = 64000 km
                   T = Time period = 24 hours = 24 × 60 × 60s
                   h = Height of the artificial satellite above earth's surface, corresponding to T = 24 hours.
                   g = 9.8 ms^-2 = 0.0098 km s^-2