InterviewSolution
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InterviewSolution
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Two planets `A` and `B` have the same material density. If the radius of `A` is twice that of `B`, then the ratio of the escape velocity `(v_(A))/(v_(B))` isA. 2B. `sqrt(2)`C. `1//sqrt(2)`D. `1//2` |
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Answer» Correct Answer - A `V_(e )=sqrt((2GM)/(R )) rArr V_(e )= sqrt((2G.(4)/(3)piR^(3)rho)/(R )) rArr V_(e ) = sqrt(8G pi rho R)` `(V_(A))/(V_(B))=(R_(A))/(R_(B)) rArr (V_(A))/(V_(B))=(2)/(1)` |
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