A) 5/13
B) 6/13
C) 13/5
D) 13/6
Correct Answer: C
Solution :
In the first case, eccentricity \[e=\sqrt{1-(25/169)}\] In the second case, \[e'\,=\sqrt{1-({{b}^{2}}/{{a}^{2}})}\] According to the given condition, \[\sqrt{1-{{b}^{2}}/{{a}^{2}}}=\sqrt{1-(25/169)}\] \[\Rightarrow \,b/a=5/13\], \[(\because \,\,a>0,\,b>0)\] Þ \[a/b=13/5.\]You need to login to perform this action.
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