Q203 / 270 · NDA 2019 (Phase 1) · Mathematics

The sum of the focal distances of a point on an ellipse is constant and equal to the

  • A
    length of minor axis
  • Correct answer
    B
    length of major axis
  • C
    length of latus rectum
  • D
    sum of the lengths of semi-major and semi-minor axes

Solution

Sum of the focal distance: The sum of the focal distance of any point on an ellipse is constant and equal to the length of the major axis of the ellipse.

Hence, the correct answer is option: 'B'.

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