A) \[\frac{1}{3}\]
B) \[\frac{1}{\sqrt{3}}\]
C) \[\sqrt{\frac{2}{3}}\]
D) \[\frac{2\sqrt{2}}{3}\]
E) none of these
Correct Answer: D
Solution :
Length of minor axis\[=2b\] and According to the given condition length of major axis\[=3(2b)=6b\] \[\therefore \] \[e=\sqrt{1-\frac{{{b}^{2}}}{{{(3b)}^{2}}}}=\sqrt{\frac{8}{9}}=\frac{2\sqrt{2}}{3}\]You need to login to perform this action.
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