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- Which of the following conics has an ecc...

Q. |
## Which of the following conics has an eccentricity of unity? |

A. | circle |

B. | parabola |

C. | hyperbola |

D. | ellipse |

Answer» B. parabola | |

Explanation: eccentricity is defined as the ratio of the distance from the focus to the distance from the directrix. it is denoted as e. the value of eccentricity can give information regarding which type of conics it is. the eccentricity of a parabola is the unity that is 1. |

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Engineering Graphics

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- The ratio of the distance from the focus to the distance from the directrix is called as eccentricity.
- If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the eccentricity?
- If the value of eccentricity is 12, then what is the name of the conic?
- If the distance from the focus is 3 units and the distance from the directrix is 3 units, then how much is the eccentricity?
- If the distance from the focus is 2 mm and the distance from the directrix is 0.5 mm then what is the value of eccentricity?
- If the distance from the directrix is greater than the distance from the focus then what is the value of eccentricity?

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