A) \[{{V}_{e}}\]
B) \[3{{V}_{e}}\]
C) \[9{{V}_{e}}\]
D) \[27{{V}_{e}}\]
Correct Answer: A
Solution :
\[{{v}_{e}}=\sqrt{\frac{2GM}{R}}\]\ \[{{v}_{e}}\propto \sqrt{\frac{M}{R}}\] If mass and radius of the planet are three times than that of earth then escape velocity will be same.
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