Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NDA 2019
Exam
NDA
Year
2019
Subject
Mathematics
Chapter
Ellipse

NDA 2019 · Mathematics · Ellipse

The sum of the focal distances of a point on an ellipse is constant...

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

Options

  1. Alength of minor axis
  2. Blength of major axis
  3. Clength of latus rectum
  4. Dsum of the lengths of semi-major and semi-minor axes

Correct answer

B. length of major axis

Step-by-step 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.
Practice Ellipse on Quantrex Academy →

More from Ellipse

Passage: The foci of the ellipse px^2+16y^2=16p and the foci of the hyperbola… NDA 2026Passage: The foci of the ellipse px^2+16y^2=16p and the foci of the hyperbola… NDA 2026If any point on an ellipse is (3 α, 5 α) , then what is the eccentricity of the ellipse? NDA 2025The foci of the ellipse 4 x^2+9 y^2=1 are at Q and R. If P(x, y) is any point on the… NDA 2024What is the eccentricity of the ellipse if the angle between the straight lines joining… NDA 2024Paragraph: Consider the following for the next two (02) items that follow: P(x, y) is any… NDA 2023Given that 4 x^2+y^2=9 What is the maximum value of y? NDA 2023Consider the following in respect of the equation (x^2)/(24-k)+(y^2)/(k-16)=2 1. The… NDA 2023Paragraph: Consider the following for the next two (02) items that follow: P(x, y) is any… NDA 2023The centre of an ellipse is at (0,0) , major axis is on the y -axis. If the ellipse… NDA 2022What is the distance between the foci of the ellipse x^2+2 y^2=1 ? NDA 2022Consider the following with regard to eccentricity (e) of a conic section : 1. e=0 for… NDA 2021Let P(x, y) be any point on the ellipse 25 x^2+16 y^2=400 . If Q(0,3) and R(0,-3) are two… NDA 2020If the angle between the lines joining the end points of minor axis of the ellipse… NDA 2019What is the equation of the ellipse whose vertices are ( ± 5,0) and foci are at ( ± 4,0) ? NDA 2018The second degree equation x^2+4 y-2 x-4 y+2=0 represents NDA 2018 Full Ellipse list Ellipse JEE Maths PYQsJEE Mathematics PYQs All NDA PYQs