1.

The escape velocity for the earth is \[{{v}_{e}}\]. The escape velocity for a planet whose radius is four times and density is nine times that of the earth, is                                  [MP PET 2003]

A.             \[36\,{{v}_{e}}\]       
B.             \[12\,{{v}_{e}}\]
C.             \[6\,{{v}_{e}}\]         
D.             \[20\,{{v}_{e}}\]
Answer» C.             \[6\,{{v}_{e}}\]         


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