A) \[\frac{b}{a}{{\upsilon }_{1}}\]
B) \[\left( \frac{a}{b} \right){{\upsilon }_{1}}\]
C) \[\left( \frac{\sqrt{a}}{b} \right){{\upsilon }_{1}}\]
D) \[\frac{\sqrt{b}}{a}{{\upsilon }_{1}}\]
Correct Answer: B
Solution :
In ellptical orbit product of speed and distance from centre is constant. \[{{\upsilon }_{1}}a={{\upsilon }_{2}}b\] \[\therefore \] \[{{\upsilon }_{2}}=\left( \frac{a}{b} \right){{\upsilon }_{1}}\]
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