NEET 2012 Physics question
A geostationary satellite is orbiting the earth at a height of above the surface of the earth, being the radius of the earth. The time period of another satellite in hours at a height of from the surface of the earth is
Answer: (4)
Solution
By Kepler's third law , where is the distance from the centre of the earth. For the geostationary satellite and ; for the other satellite . $ = ( = ( =
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