1.

 The acceleration due to gravity on a planet is same as that on earth and its radius is four times that of earth. What will be the value of escape velocity on that planet if it is \[{{v}_{e}}\] on earth        [RPET 2002]

A.             \[{{v}_{e}}\] 
B.             \[2{{v}_{e}}\]
C.             \[4{{v}_{e}}\]           
D.             \[\frac{{{v}_{e}}}{2}\]
Answer» C.             \[4{{v}_{e}}\]           


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