Question

If distance between the directrices be thrice the distance between the foci, then eccentricity of ellipse is -

• A. $\frac{1}{2}$
• B. $\frac{2}{3}$
• C. $\frac{1}{\sqrt{3}}$
• D. $\frac{4}{5}$

Answer 1

Answer: (C)

Correct answer is (c) $\frac{1}{\sqrt{3}}$