The eccentricity of the conic \[{{x}^{2}}-4{{y}^{2}}=1\], is [MP PET 1999]

The eccentricity of the conic \[{{x}^{2}}-4{{y}^{2}}=1\], is [MP PET 1

1.	The eccentricity of the conic \[{{x}^{2}}-4{{y}^{2}}=1\], is [MP PET 1999]
A.	\[\frac{2}{\sqrt{3}}\]
B.	\[\frac{\sqrt{3}}{2}\]
C.	\[\frac{2}{\sqrt{5}}\]
D.	\[\frac{\sqrt{5}}{2}\]
Answer» E.

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The eccentricity of the conic \[{{x}^{2}}-4{{y}^{2}}=1\], is [MP PET 1999]

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