The ratio of the radii of the planets P(...

The ratio of the radii of the planets `P_(1) and P_(2)` is `K`. the ratio of the acceleration due to gravity is r. the ratio of the escape velocities from them will be

`sqrt(K_1K_2)`

`sqrt(2K_1K_2)`

`sqrt((K_1)/(K_2))`

`sqrt((K_2)/(K_1))`

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