1.

The ratio of the radii of planets A and B is \[{{k}_{1}}\] and ratio of acceleration due to gravity on them is \[{{k}_{2}}\]. The ratio of escape velocities from them will be           [BHU 2002]

A.             \[{{k}_{1}}{{k}_{2}}\]       
B.             \[\sqrt{{{k}_{1}}{{k}_{2}}}\]
C.             \[\sqrt{\frac{{{k}_{1}}}{{{k}_{2}}}}\]     
D.             \[\sqrt{\frac{{{k}_{2}}}{{{k}_{1}}}}\]
Answer» C.             \[\sqrt{\frac{{{k}_{1}}}{{{k}_{2}}}}\]     


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