The ratio of the acceleration due to gravity on two planets P_(1) and P_(2) is k_(1). The ratio of their respective radii is k_(2). The ratio of their respective escape velocities is:

The ratio of the acceleration due to gravity on two planets P_(1) and

1.	The ratio of the acceleration due to gravity on two planets P_(1) and P_(2) is k_(1). The ratio of their respective radii is k_(2). The ratio of their respective escape velocities is:
Answer» `sqrt((k_(2))/(k_(1)))` `sqrt(2k_(1)k_(2))` `sqrt(k_(1)k_(2))` `sqrt((k_(1))/(k_(2)))` Solution :`(v_(1))/(v_(2))=sqrt((2g_(1)R_(1))/(2g_(2)R_(2)))=sqrt(k_(1)k_(2))` So the CORRECT choice is (c ).

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The ratio of the acceleration due to gravity on two planets P_(1) and P_(2) is k_(1). The ratio of their respective radii is k_(2). The ratio of their respective escape velocities is:

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