Conic Sections Question 163
Question: If distance between the directrices be thrice the distance between the foci, then eccentricity of ellipse is
Options:
A) 1/2
B) 2/3
C) $ 1/\sqrt{3} $
D) 4/5
Show Answer
Answer:
Correct Answer: C
Solution:
According to the condition, $ \frac{2a}{e}=6ae $
therefore $ e=\frac{1}{\sqrt{3}} $ .
BETA
