InterviewSolution
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InterviewSolution
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A satellite can be in a geostationary orbit around earth in an orbit of radius `r`. If the angular velocity of earth about its axis doubles, a satellite can now be in a geostationary orbit aroun earth radiusA. `r/2`B. `r/(2sqrt(2))`C. `r/((4)^(1//3))`D. `r/((2)^(1//3))` |
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Answer» Correct Answer - C Angular speed of earth=angular speed of geostationary satellite `T prop1/(omega)` `implies (T_(2))/(T_(1))=(omega_(1))/(omega_(2))=1/2 implies T_(2)=(T_(1))/2` Also, `T prop r^(3//2)` `:. ((r_(2))/(r_(1)))^(3//2)=(T_(2))/(T_(1))=1/2` `(r_(2))/r_(1)=(1/2)^(2//3)=1/(4^(1//3))` `r_(2)=(r_(1))/(4^(1//3))` |
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