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InterviewSolution
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Two identical satellite are at `R` and `7R` away from earth surface, the wrong statement is (`R`=radius of earth)A. Ratio of total energy of both is5B. ratio of kinetic energy of both is 4C. ratio of potential energy of both 4D. ratio of total energy of both is 4 and ratio of magnitude fo potential to kinetic energy is 2. |
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Answer» Correct Answer - A `K.E.=+(1)/(2)(GM_(1)M_(2))/(r)` `r=2R` for the first and `r=8R` for the `II^(nd)` `(K.E_(1))/(K.E_(2))=((1)/(2R)(8R)/(1))=4:1` Similarly P.E. is `implies-(GM_(1)M_(2))/(R).(P.E_(1))/(P.E_(2))=4:1` Put the ratio of `(K.E)/(P.E)=2` |
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