A) \[\sqrt{2gR}\]
B) \[\sqrt{gR}\]
C) \[\sqrt{\frac{GR}{2}}\]
D) \[g{{R}^{2}}\]
Correct Answer: A
Solution :
Radius of earth = R (given) It is clear that when a satellite is revolving around the earth then the escape velocity. \[{{\upsilon }_{es}}=\sqrt{2gR}\] (where g is the acceleration due to gravity)
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