The length of the latus rectum of an ellipse is $\frac{1}{3}$ of the major axis. Its eccentricity is
The length of the latus rectum of an ellipse is $\frac{1}{3}$ of the major axis. Its eccentricity is
- A
$\frac{2}{3}$
- B
$\sqrt {\frac{2}{3}} $
- C
$\frac{{5 \times 4 \times 3}}{{{7^3}}}$
- D
${\left( {\frac{3}{4}} \right)^4}$
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