A) A satellite cannot move in a stable orbit in a plane passing through the earth's centre
B) Geostationary satellites are launched in the equatorial plane
C) We can use just one geostationary satellite for global communication around the globe
D) The speed of a satellite increases with an increase in the radius of its orbit
Correct Answer: D
Solution :
\[v\propto \frac{1}{\sqrt{r}}.\] The speed of satellite decreases with an increase in the radius of its orbit.
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