Question :
The radii of the earth and the moon are in the ratio 10 : 1 while acceleration due to gravity on the earth's surface and moon's surface are in the ratio 6 : 1. The ratio of escape velocities from earth's surface to that of moon surface is
1. 7.74 : 1
2. 10:01
3. 1.66 : 1
4. 6:01
Answer :
1 - 7.74 : 1
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