1.

How much energy will be necessary for making a body of 500 kg escape from the earth \[[g=9.8\,m/{{s}^{2}}\], radius of earth \[=6.4\times {{10}^{6}}\,m]\]                     [MP PET 1999]

A. About \[9.8\times {{10}^{6}}\,J\]
B.               About \[6.4\times {{10}^{8}}\,J\]   
C.             About \[3.1\times {{10}^{10}}\,J\]
D.               About \[27.4\times {{10}^{12}}\,J\]
Answer» D.               About \[27.4\times {{10}^{12}}\,J\]


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