Q. The sum of focal distance of any point on the ellipse with major and minor axes as $2a$ and $2b$ respectively, is equal to
A) $2a$
B) $2\frac{a}{b}$
C) $2\frac{b}{a}$
D) $\frac{b^{2}}{a}$
Explanation
(a)
We know that sum of focal distance of any point on the ellipse always equal to the length of major axis, $ie$, it is equal to $2a$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.