1.

The orbital speed of an artificial satellite very close to the surface of the earth is \[{{V}_{o}}\]. Then the orbital speed of another artificial satellite at a height equal to three times the radius of the earth is                            [Kerala (Engg.) 2001]

A.             \[4\,{{V}_{o}}\]        
B.             \[2\,{{V}_{o}}\]
C.             \[0.5\,{{V}_{o}}\]     
D.             \[4\,{{V}_{o}}\]
Answer» D.             \[4\,{{V}_{o}}\]


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