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e(ecentricity)=__________ for parabola.


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The locus of a point which moves in a plane such that the ratio of its distance from a fixed point to its perpendicular distance from a fixed straight line is constant.This constant ratio is known as ecentricity.
e(ecentricity)=1 for parabola.
Hence (a) is the correct answer.
answered Feb 5, 2014 by sreemathi.v