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There are two planets. The ratio of radius of two planets is `k` but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocity ?A. ` (Kg)^(1//2)`B. `(Kg)^(-1//2)`C. `(Kg)^(2)`D. `(Kg)^(-2)`

Answer» Correct Answer - A
`v = sqrt(2gR)`
`:. (v_(1))/(v_(2)) = sqrt((g_(1))/(g_(2))xx (R_(1))/(R_(2))) = sqrt(g xx k) = (Kg)^(1//2)`


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