Vedantu’s Class 11 Chapter 26 - Ellipse Ex 26.1 RD Sharma Solutions
FAQs on RD Sharma Class 11 Solutions Chapter 26 - Ellipse (Ex 26.1) Exercise 26.1
1. What are conic sections?
A conic section is a curve obtained as the intersection of a surface of a cone with a plane. In simpler words, we get a conic section after slicing a cone. There are four types of conic sections:
Parabola
Hyperbola
Ellipse
A circle is a special case of the conic section.
The practical application of an ellipse is seen in Physics and Optics.
RD Sharma offers individual chapters to all these topics. You can get solutions to all these chapters easily on Vedantu.
2. How is an ellipse different from a circle?
There are some major differences between a circle and an ellipse:
Circle | Ellipse |
It is a close curved shape that is flat. And all the points are equally distanced from the centre. | Ellipse is a closed curved shape whose points are at a different distance from the centre. |
The circle has a constant radius which lies at the centre. | Ellipse does not have a constant radius. It has major and minor axes. |
The circle is considered as the special case of the ellipse.
3. What is the general equation of an ellipse?
The general equation of an ellipse is (x−h)^{2}a^{2}+(y−k)^{2}b^{2}=1
Where h and k is the centre
A and b are the major and minor radii.
Area of the ellipse = π*a*b
We will learn about these concepts in the chapter ellipse. The fixed-line parallel to the minor axis, at a distance of d from the centre, is called the directrix of the ellipse.
The eccentricity of an ellipse is defined as the elongation of the ellipse. The value of eccentricity lies between 0-1 for the ellipse. There are a variety of questions in RD Sharma based on the directrix and eccentricity of an ellipse.